Simplify console representation of GT

[machow]

Currently, because GT is a dataclass, it just displays full representations of its attributes in the console. Because its attributes are also dataclasses, they do the same, so things get a bit unwieldy:

e.g.

GT(_tbl_data=   x color
0  1   red
1  2  blue, _body=<great_tables._gt_data.Body object at 0x163d31be0>, _boxhead=Boxhead([ColInfo(var='x', type=<ColInfoTypeEnum.default: 1>, column_label='x', column_align='right', column_width=None), ColInfo(var='color', type=<ColInfoTypeEnum.default: 1>, column_label='color', column_align='left', column_width=None)]), _stub=Stub([RowInfo(rownum_i=0, group_id=None, rowname=None, group_label=None, built=False), RowInfo(rownum_i=1, group_id=None, rowname=None, group_label=None, built=False)]), _row_groups=[], _group_rows=GroupRows([]), _spanners=Spanners([]), _heading=Heading(title=None, subtitle=None, preheader=None), _stubhead=None, _source_notes=[], _footnotes=[], _styles=[StyleInfo(locname='data', locnum=5, grpname=None, colname='x', rownum=0, colnum=None, styles=[CellStyleText(color='red', font=None, size=None, align=None, v_align=None, style=None, weight=None, stretch=None, decorate=None, transform=None, whitespace=None)]), StyleInfo(locname='data', locnum=5, grpname=None, colname='x', rownum=1, colnum=None, styles=[CellStyleText(color='blue', font=None, size=None, align=None, v_align=None, style=None, weight=None, stretch=None, decorate=None, transform=None, whitespace=None)])], _locale=<great_tables._gt_data.Locale object at 0x163d31130>, _formats=[], _options=Options(table_id=OptionsInfo(scss=False, category='table', type='value', value=None), table_caption=OptionsInfo(scss=False, category='table', type='value', value=None), table_width=OptionsInfo(scss=True, category='table', type='px', value='auto'), table_layout=OptionsInfo(scss=True, category='table', type='value', value='fixed'), table_margin_left=OptionsInfo(scss=True, category='table', type='px', value='auto'), table_margin_right=OptionsInfo(scss=True, category='table', type='px', value='auto'), table_background_color=OptionsInfo(scss=True, category='table', type='value', value='#FFFFFF'), table_additional_css=OptionsInfo(scss=False, category='table', type='values', value=None), table_font_names=OptionsInfo(scss=False, category='table', type='values', value=['-apple-system', 'BlinkMacSystemFont', 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Helvetica Neue', 'Fira Sans', 'Droid Sans', 'Arial', 'sans-serif']), table_font_size=OptionsInfo(scss=True, category='table', type='px', value='16px'), table_font_weight=OptionsInfo(scss=True, category='table', type='value', value='normal'), table_font_style=OptionsInfo(scss=True, category='table', type='value', value='normal'), table_font_color=OptionsInfo(scss=True, category='table', type='value', value='#333333'), table_font_color_light=OptionsInfo(scss=True, category='table', type='value', value='#FFFFFF'), table_border_top_include=OptionsInfo(scss=False, category='table', type='boolean', value=True), table_border_top_style=OptionsInfo(scss=True, category='table', type='value', value='solid'), table_border_top_width=OptionsInfo(scss=True, category='table', type='px', value='2px'), table_border_top_color=OptionsInfo(scss=True, category='table', type='value', value='#A8A8A8'), table_border_right_style=OptionsInfo(scss=True, category='table', type='value', value='none'), table_border_right_width=OptionsInfo(scss=True, category='table', type='px', value='2px'), table_border_right_color=OptionsInfo(scss=True, category='table', type='value', value='#D3D3D3'), table_border_bottom_include=OptionsInfo(scss=False, category='table', type='boolean', value=True), table_border_bottom_style=OptionsInfo(scss=True, category='table', type='value', value='solid'), table_border_bottom_width=OptionsInfo(scss=True, category='table', type='px', value='2px'), table_border_bottom_color=OptionsInfo(scss=True, category='table', type='value', value='#A8A8A8'), table_border_left_style=OptionsInfo(scss=True, category='table', type='value', value='none'), table_border_left_width=OptionsInfo(scss=True, category='table', type='px', value='2px'), table_border_left_color=OptionsInfo(scss=True, category='table', type='value', value='#D3D3D3'), heading_background_color=OptionsInfo(scss=True, category='heading', type='value', value=None), heading_align=OptionsInfo(scss=True, category='heading', type='value', value='center'), heading_title_font_size=OptionsInfo(scss=True, category='heading', type='px', value='125%'), heading_title_font_weight=OptionsInfo(scss=True, category='heading', type='value', value='initial'), heading_subtitle_font_size=OptionsInfo(scss=True, category='heading', type='px', value='85%'), heading_subtitle_font_weight=OptionsInfo(scss=True, category='heading', type='value', value='initial'), heading_padding=OptionsInfo(scss=True, category='heading', type='px', value='4px'), heading_padding_horizontal=OptionsInfo(scss=True, category='heading', type='px', value='5px'), heading_border_bottom_style=OptionsInfo(scss=True, category='heading', type='value', value='solid'), heading_border_bottom_width=OptionsInfo(scss=True, category='heading', type='px', value='2px'), heading_border_bottom_color=OptionsInfo(scss=True, category='heading', type='value', value='#D3D3D3'), heading_border_lr_style=OptionsInfo(scss=True, category='heading', type='value', value='none'), heading_border_lr_width=OptionsInfo(scss=True, category='heading', type='px', value='1px'), heading_border_lr_color=OptionsInfo(scss=True, category='heading', type='value', value='#D3D3D3'), column_labels_background_color=OptionsInfo(scss=True, category='column_labels', type='value', value=None), column_labels_font_size=OptionsInfo(scss=True, category='column_labels', type='px', value='100%'), column_labels_font_weight=OptionsInfo(scss=True, category='column_labels', type='value', value='normal'), column_labels_text_transform=OptionsInfo(scss=True, category='column_labels', type='value', value='inherit'), column_labels_padding=OptionsInfo(scss=True, category='column_labels', type='px', value='5px'), column_labels_padding_horizontal=OptionsInfo(scss=True, category='column_labels', type='px', value='5px'), column_labels_vlines_style=OptionsInfo(scss=True, category='table_body', type='value', value='none'), column_labels_vlines_width=OptionsInfo(scss=True, category='table_body', type='px', value='1px'), column_labels_vlines_color=OptionsInfo(scss=True, category='table_body', type='value', value='#D3D3D3'), column_labels_border_top_style=OptionsInfo(scss=True, category='column_labels', type='value', value='solid'), column_labels_border_top_width=OptionsInfo(scss=True, category='column_labels', type='px', value='2px'), column_labels_border_top_color=OptionsInfo(scss=True, category='column_labels', type='value', value='#D3D3D3'), column_labels_border_bottom_style=OptionsInfo(scss=True, category='column_labels', type='value', value='solid'), column_labels_border_bottom_width=OptionsInfo(scss=True, category='column_labels', type='px', value='2px'), column_labels_border_bottom_color=OptionsInfo(scss=True, category='column_labels', type='value', value='#D3D3D3'), column_labels_border_lr_style=OptionsInfo(scss=True, category='column_labels', type='value', value='none'), column_labels_border_lr_width=OptionsInfo(scss=True, category='column_labels', type='px', value='1px'), column_labels_border_lr_color=OptionsInfo(scss=True, category='column_labels', type='value', value='#D3D3D3'), column_labels_hidden=OptionsInfo(scss=False, category='column_labels', type='boolean', value=False), row_group_background_color=OptionsInfo(scss=True, category='row_group', type='value', value=None), row_group_font_size=OptionsInfo(scss=True, category='row_group', type='px', value='100%'), row_group_font_weight=OptionsInfo(scss=True, category='row_group', type='value', value='initial'), row_group_text_transform=OptionsInfo(scss=True, category='row_group', type='value', value='inherit'), row_group_padding=OptionsInfo(scss=True, category='row_group', type='px', value='8px'), row_group_padding_horizontal=OptionsInfo(scss=True, category='row_group', type='px', value='5px'), row_group_border_top_style=OptionsInfo(scss=True, category='row_group', type='value', value='solid'), row_group_border_top_width=OptionsInfo(scss=True, category='row_group', type='px', value='2px'), row_group_border_top_color=OptionsInfo(scss=True, category='row_group', type='value', value='#D3D3D3'), row_group_border_right_style=OptionsInfo(scss=True, category='row_group', type='value', value='none'), row_group_border_right_width=OptionsInfo(scss=True, category='row_group', type='px', value='1px'), row_group_border_right_color=OptionsInfo(scss=True, category='row_group', type='value', value='#D3D3D3'), row_group_border_bottom_style=OptionsInfo(scss=True, category='row_group', type='value', value='solid'), row_group_border_bottom_width=OptionsInfo(scss=True, category='row_group', type='px', value='2px'), row_group_border_bottom_color=OptionsInfo(scss=True, category='row_group', type='value', value='#D3D3D3'), row_group_border_left_style=OptionsInfo(scss=True, category='row_group', type='value', value='none'), row_group_border_left_width=OptionsInfo(scss=True, category='row_group', type='px', value='1px'), row_group_border_left_color=OptionsInfo(scss=True, category='row_group', type='value', value='#D3D3D3'), row_group_default_label=OptionsInfo(scss=False, category='row_group', type='value', value=None), row_group_as_column=OptionsInfo(scss=False, category='row_group', type='boolean', value=False), table_body_hlines_style=OptionsInfo(scss=True, category='table_body', type='value', value='solid'), table_body_hlines_width=OptionsInfo(scss=True, category='table_body', type='px', value='1px'), table_body_hlines_color=OptionsInfo(scss=True, category='table_body', type='value', value='#D3D3D3'), table_body_vlines_style=OptionsInfo(scss=True, category='table_body', type='value', value='none'), table_body_vlines_width=OptionsInfo(scss=True, category='table_body', type='px', value='1px'), table_body_vlines_color=OptionsInfo(scss=True, category='table_body', type='value', value='#D3D3D3'), table_body_border_top_style=OptionsInfo(scss=True, category='table_body', type='value', value='solid'), table_body_border_top_width=OptionsInfo(scss=True, category='table_body', type='px', value='2px'), table_body_border_top_color=OptionsInfo(scss=True, category='table_body', type='value', value='#D3D3D3'), table_body_border_bottom_style=OptionsInfo(scss=True, category='table_body', type='value', value='solid'), table_body_border_bottom_width=OptionsInfo(scss=True, category='table_body', type='px', value='2px'), table_body_border_bottom_color=OptionsInfo(scss=True, category='table_body', type='value', value='#D3D3D3'), data_row_padding=OptionsInfo(scss=True, category='data_row', type='px', value='8px'), data_row_padding_horizontal=OptionsInfo(scss=True, category='data_row', type='px', value='5px'), stub_background_color=OptionsInfo(scss=True, category='stub', type='value', value=None), stub_font_size=OptionsInfo(scss=True, category='stub', type='px', value='100%'), stub_font_weight=OptionsInfo(scss=True, category='stub', type='value', value='initial'), stub_text_transform=OptionsInfo(scss=True, category='stub', type='value', value='inherit'), stub_border_style=OptionsInfo(scss=True, category='stub', type='value', value='solid'), stub_border_width=OptionsInfo(scss=True, category='stub', type='px', value='2px'), stub_border_color=OptionsInfo(scss=True, category='stub', type='value', value='#D3D3D3'), stub_row_group_background_color=OptionsInfo(scss=True, category='stub', type='value', value=None), stub_row_group_font_size=OptionsInfo(scss=True, category='stub', type='px', value='100%'), stub_row_group_font_weight=OptionsInfo(scss=True, category='stub', type='value', value='initial'), stub_row_group_text_transform=OptionsInfo(scss=True, category='stub', type='value', value='inherit'), stub_row_group_border_style=OptionsInfo(scss=True, category='stub', type='value', value='solid'), stub_row_group_border_width=OptionsInfo(scss=True, category='stub', type='px', value='2px'), stub_row_group_border_color=OptionsInfo(scss=True, category='stub', type='value', value='#D3D3D3'), summary_row_padding=OptionsInfo(scss=True, category='summary_row', type='px', value='8px'), summary_row_padding_horizontal=OptionsInfo(scss=True, category='summary_row', type='px', value='5px'), summary_row_background_color=OptionsInfo(scss=True, category='summary_row', type='value', value=None), summary_row_text_transform=OptionsInfo(scss=True, category='summary_row', type='value', value='inherit'), summary_row_border_style=OptionsInfo(scss=True, category='summary_row', type='value', value='solid'), summary_row_border_width=OptionsInfo(scss=True, category='summary_row', type='px', value='2px'), summary_row_border_color=OptionsInfo(scss=True, category='summary_row', type='value', value='#D3D3D3'), grand_summary_row_padding=OptionsInfo(scss=True, category='grand_summary_row', type='px', value='8px'), grand_summary_row_padding_horizontal=OptionsInfo(scss=True, category='grand_summary_row', type='px', value='5px'), grand_summary_row_background_color=OptionsInfo(scss=True, category='grand_summary_row', type='value', value=None), grand_summary_row_text_transform=OptionsInfo(scss=True, category='grand_summary_row', type='value', value='inherit'), grand_summary_row_border_style=OptionsInfo(scss=True, category='grand_summary_row', type='value', value='double'), grand_summary_row_border_width=OptionsInfo(scss=True, category='grand_summary_row', type='px', value='6px'), grand_summary_row_border_color=OptionsInfo(scss=True, category='grand_summary_row', type='value', value='#D3D3D3'), footnotes_font_size=OptionsInfo(scss=True, category='footnotes', type='px', value='90%'), footnotes_padding=OptionsInfo(scss=True, category='footnotes', type='px', value='4px'), footnotes_padding_horizontal=OptionsInfo(scss=True, category='footnotes', type='px', value='5px'), footnotes_background_color=OptionsInfo(scss=True, category='footnotes', type='value', value=None), footnotes_margin=OptionsInfo(scss=True, category='footnotes', type='px', value='0px'), footnotes_border_bottom_style=OptionsInfo(scss=True, category='footnotes', type='value', value='none'), footnotes_border_bottom_width=OptionsInfo(scss=True, category='footnotes', type='px', value='2px'), footnotes_border_bottom_color=OptionsInfo(scss=True, category='footnotes', type='value', value='#D3D3D3'), footnotes_border_lr_style=OptionsInfo(scss=True, category='footnotes', type='value', value='none'), footnotes_border_lr_width=OptionsInfo(scss=True, category='footnotes', type='px', value='2px'), footnotes_border_lr_color=OptionsInfo(scss=True, category='footnotes', type='value', value='#D3D3D3'), footnotes_marks=OptionsInfo(scss=False, category='footnotes', type='values', value='numbers'), footnotes_multiline=OptionsInfo(scss=False, category='footnotes', type='boolean', value=True), footnotes_sep=OptionsInfo(scss=False, category='footnotes', type='value', value=' '), source_notes_padding=OptionsInfo(scss=True, category='source_notes', type='px', value='4px'), source_notes_padding_horizontal=OptionsInfo(scss=True, category='source_notes', type='px', value='5px'), source_notes_background_color=OptionsInfo(scss=True, category='source_notes', type='value', value=None), source_notes_font_size=OptionsInfo(scss=True, category='source_notes', type='px', value='90%'), source_notes_border_bottom_style=OptionsInfo(scss=True, category='source_notes', type='value', value='none'), source_notes_border_bottom_width=OptionsInfo(scss=True, category='source_notes', type='px', value='2px'), source_notes_border_bottom_color=OptionsInfo(scss=True, category='source_notes', type='value', value='#D3D3D3'), source_notes_border_lr_style=OptionsInfo(scss=True, category='source_notes', type='value', value='none'), source_notes_border_lr_width=OptionsInfo(scss=True, category='source_notes', type='px', value='2px'), source_notes_border_lr_color=OptionsInfo(scss=True, category='source_notes', type='value', value='#D3D3D3'), source_notes_multiline=OptionsInfo(scss=False, category='source_notes', type='boolean', value=True), source_notes_sep=OptionsInfo(scss=False, category='source_notes', type='value', value=' '), row_striping_background_color=OptionsInfo(scss=True, category='row', type='value', value='rgba(128,128,128,0.05)'), row_striping_include_stub=OptionsInfo(scss=False, category='row', type='boolean', value=False), row_striping_include_table_body=OptionsInfo(scss=False, category='row', type='boolean', value=False), container_width=OptionsInfo(scss=False, category='container', type='px', value='auto'), container_height=OptionsInfo(scss=False, category='container', type='px', value='auto'), container_padding_x=OptionsInfo(scss=False, category='container', type='px', value='0px'), container_padding_y=OptionsInfo(scss=False, category='container', type='px', value='10px'), container_overflow_x=OptionsInfo(scss=False, category='container', type='overflow', value='auto'), container_overflow_y=OptionsInfo(scss=False, category='container', type='overflow', value='auto'), page_orientation=OptionsInfo(scss=False, category='page', type='value', value='portrait'), page_numbering=OptionsInfo(scss=False, category='page', type='boolean', value=False), page_header_use_tbl_headings=OptionsInfo(scss=False, category='page', type='boolean', value=False), page_footer_use_tbl_notes=OptionsInfo(scss=False, category='page', type='boolean', value=False), page_width=OptionsInfo(scss=False, category='page', type='value', value='8.5in'), page_height=OptionsInfo(scss=False, category='page', type='value', value='11.0in'), page_margin_left=OptionsInfo(scss=False, category='page', type='value', value='1.0in'), page_margin_right=OptionsInfo(scss=False, category='page', type='value', value='1.0in'), page_margin_top=OptionsInfo(scss=False, category='page', type='value', value='1.0in'), page_margin_bottom=OptionsInfo(scss=False, category='page', type='value', value='1.0in'), page_header_height=OptionsInfo(scss=False, category='page', type='value', value='0.5in'), page_footer_height=OptionsInfo(scss=False, category='page', type='value', value='0.5in'), quarto_disable_processing=OptionsInfo(scss=False, category='quarto', type='logical', value=False), quarto_use_bootstrap=OptionsInfo(scss=False, category='quarto', type='logical', value=False)), _has_built=False)

Let's simplify the representation in the console a bit by:

• showing all the parts of the GT object (e.g. _styles)
• BUT give a summary of each part (e.g. number of items in _styles, rather than showing each one)
  • Alternatively, we could show most of the first and last items, etc..

Note that this likely isn't too critical, since ideally people are developing somewhere they can preview the HTML output (similar to developing a plot), but may be useful for debugging