Add nonce to AjaxButton enqueue

A nonce has been added to the AjaxButton enqueue to enhance security. This nonce ('rwps-ajax-button-nonce') is localized to 'rwps_ajax_button' using the addLocalize function.

Author: rockschtar

src/Fields/AjaxButton.php

@@ -36,6 +36,7 @@ public function __construct(string $id)
         }
 
         $enqueue = new EnqueueScript('rwps-ajax-button', $src, PluginVersion::get(), ['jquery']);
+        $enqueue->addLocalize('rwps_ajax_button', ['nonce' => wp_create_nonce('rwps-ajax-button-nonce')]);
 
         $this->addEnqueue($enqueue);
     }