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

Conflicts:
- app/controllers/settings/notifications_controller.rb
- app/javascript/packs/public.js
- app/views/settings/preferences/show.html.haml
- app/views/stream_entries/_simple_status.html.haml
- config/locales/simple_form.en.yml
- config/locales/simple_form.pl.yml
- config/navigation.rb
- config/routes.rb

app/javascript/mastodon/locales/ja.json

@@ -250,6 +250,7 @@
   "navigation_bar.personal": "個人用",
   "navigation_bar.pins": "固定したトゥート",
   "navigation_bar.preferences": "ユーザー設定",
+  "navigation_bar.profile_directory": "Profile directory",
   "navigation_bar.public_timeline": "連合タイムライン",
   "navigation_bar.misc": "その他",
   "navigation_bar.security": "セキュリティ",