Merge branch 'main' into glitch-soc/merge-upstream

Conflicts:
- `README.md`:
  Minor upstream change, our README is completely different.
  Kept ours.
- `lib/tasks/assets.rake`:
  glitch-soc has extra code to deal with its theming system,
  upstream changed a line that exists in glitch-soc.
  Applied upstream changes.

app/serializers/initial_state_serializer.rb

@@ -47,6 +47,7 @@ class InitialStateSerializer < ActiveModel::Serializer
       single_user_mode: Rails.configuration.x.single_user_mode,
       translation_enabled: TranslationService.configured?,
       trends_as_landing_page: Setting.trends_as_landing_page,
+      status_page_url: Setting.status_page_url,
     }
 
     if object.current_account