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

Conflicts manually resolved:
- app/services/post_status_service.rb
- config/locales/simple_form.pl.yml
- config/routes.rb
- config/webpack/loaders/sass.js
- config/webpack/shared.js
- package.json
- yarn.lock

app/javascript/mastodon/locales/en.json

@@ -346,7 +346,7 @@
   "upload_area.title": "Drag & drop to upload",
   "upload_button.label": "Add media (JPEG, PNG, GIF, WebM, MP4, MOV)",
   "upload_form.description": "Describe for the visually impaired",
-  "upload_form.focus": "Crop",
+  "upload_form.focus": "Change preview",
   "upload_form.undo": "Delete",
   "upload_progress.label": "Uploading...",
   "video.close": "Close video",