newsupernova/app/code/Mageplaza/AjaxLayer/etc/frontend/di.xml

<?xml version="1.0"?>
<!--
/**
 * Mageplaza
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Mageplaza.com license that is
 * available through the world-wide-web at this URL:
 * https://www.mageplaza.com/LICENSE.txt
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade this extension to newer
 * version in the future.
 *
 * @category    Mageplaza
 * @package     Mageplaza_AjaxLayer
 * @copyright   Copyright (c) Mageplaza (http://www.mageplaza.com/)
 * @license     https://www.mageplaza.com/LICENSE.txt
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <preference for="Magento\CatalogSearch\Controller\Result\Index" type="Mageplaza\AjaxLayer\Controller\Search\Result\Index"/>
    <type name="Magento\Catalog\Controller\Category\View">
        <plugin name="ajax_layer_navigation" type="Mageplaza\AjaxLayer\Plugin\Controller\Category\View" sortOrder="1"/>
    </type>
</config>