🐛 Check modal open state before calling Navigator.pop when closing

Author: AlexV525

packages/reown_appkit/lib/modal/appkit_modal_impl.dart

@@ -1401,7 +1401,12 @@ class ReownAppKitModal
   @override
   void closeModal({bool disconnectSession = false}) async {
     _disconnectOnClose = disconnectSession;
+
     // If we aren't open, then we can't and shouldn't close
+    if (!_isOpen) {
+      return;
+    }
+
     _close();
     if (_context != null) {
       final canPop = Navigator.of(_context!, rootNavigator: true).canPop();