title: How do I manage assets in Yii2?
body: <p>For example, I created a new page, and I'd like to use, for example, backbone.js, custom css file and some collection of images. Where should I declare all this stuff in Yii2? I found the AppAsset.php module, but this is only for css/js files and I haven't noticed any changes when my css/js files and path were declared there:</p>
  
  <pre><code>class AppAsset extends AssetBundle {
      public $basePath = '@webroot';
      public $baseUrl = '@web';
      public $css = [
          'css/site.css',
          'js/jquery.mobile-1.4.2.min.css',
      ];
      public $js = [
          'js/jsquery-2.1.0.min.js',
          'js/jquery.mobile-1.4.2.min.js',
          'js/script.js',
      ];
  
      public $depends = [
          'yii\web\YiiAsset',
          'yii\bootstrap\BootstrapAsset',
      ];
  }
  </code></pre>
  
  <p>What am I doing wrong? </p>