Conflicts:
- `.github/dependabot.yml`:
Upstream made changes while we have dropped this file.
Keep the file deleted.
- `.prettierignore`:
Upstream made changes at the end of the file, where we
had our extra lines.
Just moved our extra lines back at the end.
- `app/serializers/initial_state_serializer.rb`:
Upstream code style changes.
Applied them.
- `app/services/backup_service.rb`:
Upstream code style changes.
Applied them.
* Add database table for status-specific filters
* Add REST endpoints, entities and attributes
* Show status filters in /filters interface
* Perform server-side filtering for individual posts filters
* Fix filtering on context mismatch
* Refactor `toServerSideType` by moving it to its own module
* Move loupe and delete icons to their own module
* Add ability to filter individual posts from WebUI
* Replace keyword list by warnings (expired, context mismatch)
* Refactor server-side filtering code
* Add tests
