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

Conflicts:
- README.md
- app/helpers/statuses_helper.rb
  Upstream moved account helpers to their own file, we had extra
  helpers there, moved too.
- app/lib/sanitize_config.rb
- app/models/user.rb
- app/serializers/initial_state_serializer.rb
- config/locales/simple_form.en.yml
- spec/lib/sanitize_config_spec.rb

config/locales/simple_form.en.yml

@@ -83,7 +83,7 @@ en:
         text: Custom warning
         type: Action
         types:
-          disable: Disable
+          disable: Disable login
           none: Do nothing
           silence: Silence
           suspend: Suspend and irreversibly delete account data
@@ -118,6 +118,7 @@ en:
         setting_aggregate_reblogs: Group boosts in timelines
         setting_auto_play_gif: Auto-play animated GIFs
         setting_boost_modal: Show confirmation dialog before boosting
+        setting_crop_images: Crop images in non-expanded toots to 16x9
         setting_default_content_type: Default format for toots
         setting_default_content_type_html: HTML
         setting_default_content_type_markdown: Markdown