bugfix(ajax): permission check

src/WPDesk/Notice/AjaxHandler.php

@@ -79,7 +79,7 @@ class AjaxHandler implements HookablePluginDependant {
             $noticeName = sanitize_text_field( $_POST[ self::POST_FIELD_NOTICE_NAME ] );
 
             $option_name = PermanentDismissibleNotice::OPTION_NAME_PREFIX . $noticeName;
-            ajax_check_referer( $option_name, self::POST_FIELD_SECURITY );
+            \ajax_check_referer( $option_name, self::POST_FIELD_SECURITY );
 
             if ( ! current_user_can( 'edit_posts' ) ) {
                 wp_send_json_error();