- Remove imports at the top of options.py and views.py that result in ImportError when those apps aren’t installed
- Alter ThumbnailMixin and InspectView to use the `wagtail.wagtailimages.shortcuts.get_rendition_or_not_found()` method to render images, which handles missing image source files gracefully, and reduces code duplication.
- Simplify `get_field_display_value()` by not limiting image and document rendering to ForeignKey fields. It should work consistently for property methods or other attributes too.
- Removes unnecessary right padding from result list when listing is supposed to be full-width (no filters) on desktop
- Removes unnecessary left/right padding from result list on mobile (the table cells have padding of their own)
- In order to be more consistent with the Explorer list view, only make orderable column header links 'teal' if the listing is currently ordered by that field
- Better use of scss hierarchy to improve readability
- Remove the ‘teal’ CSS class from orderable header links
