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/helpers/settings_helper.rb

@@ -30,6 +30,7 @@ module SettingsHelper
     ja: '日本語',
     ka: 'ქართული',
     ko: '한국어',
+    ml: 'മലയാളം',
     nl: 'Nederlands',
     no: 'Norsk',
     oc: 'Occitan',