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

Conflicts:
- `app/models/account.rb`:
  Conflict because we (glitch-soc) have disabled trending of posts without
  review.
  Discarded that upstream change.
- `app/views/admin/settings/discovery/show.html.haml`:
  Just an extra setting in glitch-soc.
  Kept that extra setting.

app/helpers/languages_helper.rb

@@ -195,6 +195,7 @@ module LanguagesHelper
     kmr: ['Kurmanji (Kurdish)', 'Kurmancî'].freeze,
     ldn: ['Láadan', 'Láadan'].freeze,
     lfn: ['Lingua Franca Nova', 'lingua franca nova'].freeze,
+    sco: ['Scots', 'Scots'].freeze,
     tok: ['Toki Pona', 'toki pona'].freeze,
     zba: ['Balaibalan', 'باليبلن'].freeze,
     zgh: ['Standard Moroccan Tamazight', 'ⵜⴰⵎⴰⵣⵉⵖⵜ'].freeze,