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

Conflicts:
- `.github/dependabot.yml`:
  Upstream made changes while we have dropped this file.
  Keep the file deleted.
- `.prettierignore`:
  Upstream made changes at the end of the file, where we
  had our extra lines.
  Just moved our extra lines back at the end.
- `app/serializers/initial_state_serializer.rb`:
  Upstream code style changes.
  Applied them.
- `app/services/backup_service.rb`:
  Upstream code style changes.
  Applied them.

app/controllers/auth/sessions_controller.rb

@@ -115,9 +115,7 @@ class Auth::SessionsController < Devise::SessionsController
   def home_paths(resource)
     paths = [about_path]
 
-    if single_user_mode? && resource.is_a?(User)
-      paths << short_account_path(username: resource.account)
-    end
+    paths << short_account_path(username: resource.account) if single_user_mode? && resource.is_a?(User)
 
     paths
   end