Allow UserPreferences to be interacted without a logged in user

Winter\Storm\Auth\Models\Preference->get() allows for no user context to be present

Author: LukeTowers

modules/backend/models/UserPreference.php

@@ -29,9 +29,6 @@ class UserPreference extends PreferencesBase
     public function resolveUser($user)
     {
         $user = BackendAuth::getUser();
-        if (!$user) {
-            throw new SystemException(trans('backend::lang.user.preferences.not_authenticated'));
-        }
 
         return $user;
     }