added enabler to show the postfolio listing

blocks/portfolio-listing-section.php

-<?php if (get_field('enable_section')) :
-    $terms = get_terms('portfolio-category');
-    if ($terms) :
+<?php
+$portfolio_listing = get_field('portfolio_listing') ?: [];
+if (is_array($portfolio_listing) && !empty($portfolio_listing) && isset($portfolio_listing)):
+    $enable_portfolio_listing = $portfolio_listing['enable_portfolio_listing'] ?? '';
+    if ($enable_portfolio_listing && !empty($enable_portfolio_listing) && isset($enable_portfolio_listing)):
+        $terms = get_terms('portfolio-category');
 ?>
         <section class="case-study-filter background-dark mb-60 ABOUT TOP-BANNER-SECTION">
             <div class="container">
@@ -102,4 +105,5 @@
             </div>
         </section>
 <?php endif;
-endif; ?>
+endif;
\ No newline at end of file
+?>
\ No newline at end of file