fix(ui): Superfluous and invalid attribute initialisation (#2747)

* fix(ui): fixed a memopry leak and a waring in topbar.cpp
* fix: Restore ScreenMenu on exit of topbar widget setup

radio/src/gui/colorlcd/topbar.cpp

@@ -35,8 +35,7 @@ Topbar * TopbarFactory::create(Window * parent)
 }
 
 SetupTopBarWidgetsPage::SetupTopBarWidgetsPage():
-  FormWindow(ViewMain::instance(), rect_t{}, FORM_FORWARD_FOCUS),
-  menu(menu)
+  FormWindow(ViewMain::instance(), rect_t{}, FORM_FORWARD_FOCUS)
 {
   // remember focus
   Layer::push(this);

radio/src/gui/colorlcd/topbar.h

@@ -54,7 +54,4 @@ class SetupTopBarWidgetsPage : public FormWindow
   void onClicked() override;
   void onCancel() override;
   void deleteLater(bool detach = true, bool trash = true) override;
-
- protected:
-  ScreenMenu* menu;
 };