fix: modal: get rid of optional chaining

Author: coderaiser

lib/modal.js

@@ -96,7 +96,9 @@ const onMainClick = currify((overlayClick, event) => {
 });
 
 const close = (event) => {
-    event?.stopPropagation();
+    if (event)
+        event.stopPropagation();
+    
     const el = query('main');
 
     const {