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

Conflicts:
- `app/controllers/accounts_controller.rb`:
  Upstream introduced support for private pinned toots, but glitch-soc's query
  was a bit different as it filtered out local-only toots.
  Used upstream's query, while adding local-only filtering back.
- `app/controllers/activitypub/collections_controller.rb`:
  Same thing with regards to local-only posts.
- `app/validators/status_pin_validator.rb`:
  Not a real conflict, but the line below was different in glitch-soc due to
  the configurable pinned toots limit.

config/locales/en.yml

@@ -1300,9 +1300,9 @@ en:
     open_in_web: Open in web
     over_character_limit: character limit of %{max} exceeded
     pin_errors:
+      direct: Posts that are only visible to mentioned users cannot be pinned
       limit: You have already pinned the maximum number of posts
       ownership: Someone else's post cannot be pinned
-      private: Non-public posts cannot be pinned
       reblog: A boost cannot be pinned
     poll:
       total_people: