Moved the MVC to extend the CMS MVC via namespace.

admin/models/componentbuilder.php

@@ -13,12 +13,13 @@
 // No direct access to this file
 defined('_JEXEC') or die('Restricted access');
 
-
+use Joomla\CMS\MVC\Model\ListModel;
+use Joomla\Utilities\ArrayHelper;
 
 /**
- * Componentbuilder Model
+ * Componentbuilder List Model
  */
-class ComponentbuilderModelComponentbuilder extends JModelList
+class ComponentbuilderModelComponentbuilder extends ListModel
 {
 	public function getIcons()
 	{