Move backend config to common config after.

apps/advanced/tests/codeception/config/backend/functional.php

@@ -6,10 +6,10 @@ $_SERVER['SCRIPT_NAME'] = YII_BACKEND_TEST_ENTRY_URL;
  * Application configuration for backend functional tests
  */
 return yii\helpers\ArrayHelper::merge(
-    require(YII_APP_BASE_PATH . '/backend/config/main.php'),
-    require(YII_APP_BASE_PATH . '/backend/config/main-local.php'),
     require(YII_APP_BASE_PATH . '/common/config/main.php'),
     require(YII_APP_BASE_PATH . '/common/config/main-local.php'),
+    require(YII_APP_BASE_PATH . '/backend/config/main.php'),
+    require(YII_APP_BASE_PATH . '/backend/config/main-local.php'),
     require(dirname(__DIR__) . '/config.php'),
     require(dirname(__DIR__) . '/functional.php'),
     require(__DIR__ . '/config.php'),