Checks if there is at least one link before showing the navigation items.

src/template-parts/single-items-navigation.php

@@ -95,6 +95,7 @@
     }
 ?>
 
+<?php if($previous_link_url !== false || $next_link_url !== false): ?>
     <div class="tainacan-single-post">
         <h2 class="title-content-items"><?php echo __('Also in this collection', 'tainacan-interface') ?></h2>
         <div id="item-single-navigation" class="d-flex justify-content-between margin-two-column">
@@ -106,3 +107,4 @@
             </div>
         </div>
     </div>
+<?php endif; ?>