This improves page responsiveness on first load, especially on pages with many images (eg images list in Wagtail admin)
* Lazy load thumbnails on modeladmin lists
* Update oembed photos to use lazy loading
* Use lazy loading for `MediaBlock`, the avatar in the sidebar and comments
* Just decode chooser images async
- Allow users to override the default attributes given to an image
- Update tests to account for new tags
- Add documentation for custom image attributes
- Recommend that loading=lazy & decoding=async be considered for performance in front-end sites
- formatting fix for the header on small devices
- ensure the padding left is not set so that the outside is fully clickable
- fixed close button colours
- fix alignment and heights of smaller breakpoint modal header
- fixes #9053
- fixes #9014
- fix some broken refs that were lost in the migration to markdown files
- use lower_snake_case for all internal refs (most follow this convention)
- release process sub-section in docs should be named release schedule instead
Fixes #8989. Now that DocumentChooserBlock is constructed dynamically via wagtail.documents.viewsets.chooser, we need to explicitly set its `__module__` attribute so that the result of calling `deconstruct()` for migrations points back to the wagtail.documents.blocks module.
Also update the documentation for defining custom choosers, and add tests for deconstructing the other chooser blocks.
- as of 3.0 - report filters would overflow the viewport in Wagtail
- fix layout issue with form submission lists introduced with filtering changes
- remove invalid css grid-column-start (unused)
- adopt theme variables for all main spacing instead of hard-coded em/rem/px values
- fixes #8929
* Modified route decorator so it adds new route to view depending on pattern type; default to path
* Made a separate decorator
* Renamed route to path and updated RoutablePage models
* Added a check to warn user when using regex with path decorator
* Made @route alias of @re_path, added tests for @re_path
* resolves #7031
