Move AppAsset from config to assets directory

config/AppAsset.php

@@ -5,7 +5,7 @@
  * @license http://www.yiiframework.com/license/
  */
 
-namespace app\config;
+namespace app\assets;
 
 use yii\web\AssetBundle;
 

views/layouts/main.php

@@ -3,7 +3,7 @@ use yii\helpers\Html;
 use yii\bootstrap\Nav;
 use yii\bootstrap\NavBar;
 use yii\widgets\Breadcrumbs;
-use app\config\AppAsset;
+use app\assets\AppAsset;
 
 /**
  * @var \yii\web\View $this