Merge commit '3a2a15c6ea4d4603469861ed9be09da12a122e45' into glitch-soc/merge-upstream

Conflicts:
- `app/views/settings/preferences/appearance/show.html.haml`:
  Conflict because glitch-soc does not have a theme selector here.

app/controllers/api/v1/accounts_controller.rb

@@ -90,7 +90,7 @@ class Api::V1::AccountsController < Api::BaseController
   end
 
   def account_params
-    params.permit(:username, :email, :password, :agreement, :locale, :reason)
+    params.permit(:username, :email, :password, :agreement, :locale, :reason, :time_zone)
   end
 
   def check_enabled_registrations