dialog: prevent key events from being transmitted to parent

radio/src/thirdparty/libopenui/src/dialog.cpp

@@ -74,3 +74,9 @@ void Dialog::onCancel()
 {
   deleteLater();
 }
+
+void Dialog::onEvent(event_t event)
+{
+  // block key events 
+  (void)event;
+}

radio/src/thirdparty/libopenui/src/dialog.h

@@ -53,4 +53,5 @@ class Dialog : public ModalWindow
   DialogWindowContent* content;
 
   void onCancel() override;
+  void onEvent(event_t event) override;
 };