Combined search not working if table contains searchable Date(Time)Fields

[IceQ1337]

The request to filter the table by multiple search values currently fails if the table contains one or more searchable DateFields or DateTimeFields. This is reproducable with the albums demo table.

During filtering, the list of search values is passed to parse_date(), but that function does not seem to properly account for it and will throw an unavoidable TypeError.

https://github.com/morlandi/django-ajax-datatable/blob/ac0f4edde748674dc9b960b9a4876bee39766132/ajax_datatable/filters.py#L46

https://github.com/morlandi/django-ajax-datatable/blob/ac0f4edde748674dc9b960b9a4876bee39766132/ajax_datatable/utils.py#L131

Stacktrace:

Traceback (most recent call last):
  File "/usr/src/app/xxx/views/datatables.py", line 141, in xxx_datatable
    return xxxAjaxDatatableView.as_view()(request)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/django/views/generic/base.py", line 104, in view
    return self.dispatch(request, *args, **kwargs)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/django/utils/decorators.py", line 48, in _wrapper
    return bound_method(*args, **kwargs)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/django/views/decorators/csrf.py", line 65, in _view_wrapper
    return view_func(request, *args, **kwargs)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/ajax_datatable/views.py", line 411, in dispatch
    response = super(AjaxDatatableView, self).dispatch(request, *args, **kwargs)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/django/views/generic/base.py", line 143, in dispatch
    return handler(request, *args, **kwargs)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/ajax_datatable/views.py", line 514, in post
    return self.get(request, *args, **kwargs)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/ajax_datatable/views.py", line 552, in get
    qs = self.prepare_queryset(params, qs)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/ajax_datatable/views.py", line 821, in prepare_queryset
    qs = self.filter_queryset(params, qs)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/ajax_datatable/views.py", line 831, in filter_queryset
    qs = self.filter_queryset_all_columns(params['search_value'], qs)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/ajax_datatable/views.py", line 897, in filter_queryset_all_columns
    return self._filter_queryset(searchable_columns, search_value, qs, True)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/ajax_datatable/views.py", line 880, in _filter_queryset
    column_filter = build_column_filter(column_name, column_obj, column_spec, search_value, global_filtering)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/ajax_datatable/filters.py", line 46, in build_column_filter
    parsed_date = parse_date(search_value)
  File "/root/.cache/pypoetry/virtualenvs/non-package-mode-VA82Wl8V-py3.10/lib/python3.10/site-packages/ajax_datatable/utils.py", line 131, in parse_date
    parsed_date = datetime.datetime.strptime(formatted_date, date_format)
TypeError: strptime() argument 1 must be str, not list