[19.0][MIG] web_widget_product_label_section_and_note_name_visibility: migrate to Odoo 19.0

[Webbeh]

This is an update of the web_widget_product_label_section_and_note_name_visibility module found on version 18.0

• bumped the version to 19.0
• modified xml so it targets the right XPATH for invoice/quotation lines in v19
• added some styling to match Odoo's interface colors
• checked everything works within the UI and printed quotes/invoices

I have it working on my production. Hope this helps.