Update js/index.js

Co-authored-by: Copilot <[email protected]>

Author: RKBoss6

js/index.js

@@ -446,7 +446,7 @@ function handleCustomApp(appTemplate) {
         </div>
         <div class="modal-body" style="height:100%">
           <div class="content" style="height:100%">
-            <iframe class="modal-iframe" src="apps/${appTemplate.id}/${appTemplate.custom}" style="width:100%;height:100%;border:0px;">
+            <iframe src="apps/${appTemplate.id}/${appTemplate.custom}" style="width:100%;height:100%;border:0px;">
           </div>
         </div>
       </div>