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

Conflicts:
- `Gemfile.lock`:
  Not a real conflict, just an upstream dependency udpated
  textually too close to a glitch-soc-only dependency.
  Updated dependencies like upstream.
- `app/controllers/settings/preferences_controller.rb`:
  Upstream added settings where we had extra glitch-soc-specific settings.
  Added upstream's new settings.
- `app/models/user.rb`:
  Upstream added settings where we had extra glitch-soc-specific settings.
  Added upstream's new settings.
- `config/i18n-tasks.yml`:
  Not a real conflict, just a new upstream line too textually close to
  a glitch-soc-only line.
  Ported upstream's change.

app/javascript/mastodon/locales/ja.json

@@ -520,6 +520,7 @@
   "upload_error.poll": "アンケートではファイルをアップロードできません。",
   "upload_form.audio_description": "聴取が難しいユーザーへの説明",
   "upload_form.description": "閲覧が難しいユーザーへの説明",
+  "upload_form.description_missing": "No description added",
   "upload_form.edit": "編集",
   "upload_form.thumbnail": "サムネイルを変更",
   "upload_form.undo": "削除",