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

Conflicts:
- `app/controllers/concerns/sign_in_token_authentication_concern.rb`:
  Upstream removed this file, while glitch-soc had changes to deal with
  its theming system.
  Removed the file like upstream did.

app/policies/user_policy.rb

@@ -13,14 +13,6 @@ class UserPolicy < ApplicationPolicy
     admin? && !record.staff?
   end
 
-  def disable_sign_in_token_auth?
-    staff?
-  end
-
-  def enable_sign_in_token_auth?
-    staff?
-  end
-
   def confirm?
     staff? && !record.confirmed?
   end