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

Conflicts:
- app/controllers/settings/notifications_controller.rb
- app/javascript/packs/public.js
- app/views/settings/preferences/show.html.haml
- app/views/stream_entries/_simple_status.html.haml
- config/locales/simple_form.en.yml
- config/locales/simple_form.pl.yml
- config/navigation.rb
- config/routes.rb

app/views/about/show.html.haml

@@ -8,7 +8,7 @@
 .landing
   .landing__brand
     = link_to root_url, class: 'brand' do
-      = image_pack_tag 'logo_full.svg', alt: 'Mastodon'
+      = svg_logo_full
       %span.brand__tagline=t 'about.tagline'
 
   .landing__grid