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

Conflicts:
- app/controllers/oauth/authorized_applications_controller.rb
  Two changes too close to each other
- app/controllers/settings/sessions_controller.rb
- app/lib/user_settings_decorator.rb
  Two changes too close to each other
- app/models/media_attachment.rb
  New changes too close to glitch-soc only changes.
- app/models/user.rb
  Two changes too close to each other.
- app/services/remove_status_service.rb
  Kept direct timeline code which had been removed upstream.
- app/views/settings/preferences/show.html.haml
  Two changes too close to each other.
- config/locales/en.yml
  Introduction of a new string too close to glitch-soc-only's “flavour”
- config/locales/ja.yml
  Introduction of a new string too close to glitch-soc-only's “flavour”
- config/locales/pl.yml
  Introduction of a new string too close to glitch-soc-only's “flavour”
- config/locales/simple_form.en.yml
  Introduction of a new string too close to glitch-soc-only's “skin”
- config/locales/simple_form.pl.yml
  Introduction of a new string too close to glitch-soc-only's “skin”
- config/settings.yml
  Reverted upstream's decision of enabling posting application by default.

app/views/admin/change_emails/show.html.haml

@@ -3,7 +3,7 @@
 
 = simple_form_for @user, url: admin_account_change_email_path(@account.id) do |f|
   .fields-group
-    = f.input :email, wrapper: :with_label, disabled: true, label: t('admin.accounts.change_email.current_email')
+    = f.input :email, wrapper: :with_label, hint: false, disabled: true, label: t('admin.accounts.change_email.current_email')
 
   .fields-group
     = f.input :unconfirmed_email, wrapper: :with_label, label: t('admin.accounts.change_email.new_email')