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

Conflicts:
	app/controllers/accounts_controller.rb
	app/javascript/mastodon/locales/pl.json
	app/views/about/more.html.haml

Conflicts in `accounts_controller.rb` resolved by taking upstream's
version + our `use_pack`.

Conflicts in `pl.json` resolved by taking upstream's changes.

Conflicts in `aboute/more.html.haml` resolved by taking upstream's changes.

config/locales/oc.yml

@@ -9,9 +9,6 @@ oc:
     contact: Contacte
     contact_missing: Pas parametrat
     contact_unavailable: Pas disponible
-    description_headline: Qué es %{domain} ?
-    domain_count_after: autras instàncias
-    domain_count_before: Connectat a
     extended_description_html: |
       <h3>Una bona plaça per las règlas</h3>
       <p>La descripcion longa es pas estada causida pel moment.</p>