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

Conflicts:
- .eslintrc.yml
  Removed, as upstream removed it.
- app/controllers/admin/statuses_controller.rb
  Minor code cleanup when porting one of our features.
- app/models/account.rb
  Note length validation has changed upstream.
  We now use upstream's validation (dropped legacy glitch-soc
  account metadata stuff) but with configurable limit.
- app/services/post_status_service.rb
  Upstream has added support for scheduled toots, refactoring
  the code a bit. Adapted our changes to this refactoring.
- app/views/stream_entries/_detailed_status.html.haml
  Not a real conflict, changes too close.
- app/views/stream_entries/_simple_status.html.haml
  Not a real conflict, changes too close.

app/javascript/mastodon/locales/pl.json

@@ -297,6 +297,8 @@
   "search_results.statuses": "Wpisy",
   "search_results.total": "{count, number} {count, plural, one {wynik} few {wyniki} many {wyników} more {wyników}}",
   "standalone.public_title": "Spojrzenie w głąb…",
+  "status.admin_account": "Open moderation interface for @{name}",
+  "status.admin_status": "Open this status in the moderation interface",
   "status.block": "Zablokuj @{name}",
   "status.cancel_reblog_private": "Cofnij podbicie",
   "status.cannot_reblog": "Ten wpis nie może zostać podbity",
@@ -346,7 +348,7 @@
   "upload_area.title": "Przeciągnij i upuść aby wysłać",
   "upload_button.label": "Dodaj zawartość multimedialną (JPEG, PNG, GIF, WebM, MP4, MOV)",
   "upload_form.description": "Wprowadź opis dla niewidomych i niedowidzących",
-  "upload_form.focus": "Przytnij",
+  "upload_form.focus": "Dopasuj podgląd",
   "upload_form.undo": "Usuń",
   "upload_progress.label": "Wysyłanie...",
   "video.close": "Zamknij film",