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* [x] I have searched the issue tracker for an issue that matches the one I want to file, without success.

### Issue Details

* **Electron Version:**
  * 12.0.0-beta.1 to 12.0.0-beta.6
* **Operating System:**
  * Windows 10 (2004) 
* **Last Known Working Electron version:**
  * 11.x.x (all of them)

### Expected Behavior
Click on Menu Item opens the submenu of this item

### Actual Behavior
Clicking on menu set with Menu.setApplicationMenu(Menu.buildFromTemplate(topLevelItems)); is not possible. Pressing "ALT" Highlights the menu but nothing more happens

### To Reproduce
Build Application with menu
shell/browser/ui/views/menu_bar.cc
return menu_model_ ? menu_model_->GetItemCount() : 0;
}
bool MenuBar::GetMenuButtonFromScreenPoint(const gfx::Point& screenPoint,
                                           ElectronMenuModel** menu_model,
                                           views::MenuButton** button) {
  if (!GetBoundsInScreen().Contains(screenPoint))
    return false;
  auto children = GetChildrenInZOrder();
  for (int i = 0, n = children.size(); i < n; ++i) {
    if (children[i]->GetBoundsInScreen().Contains(screenPoint) &&
        (menu_model_->GetTypeAt(i) == ElectronMenuModel::TYPE_SUBMENU)) {
      *menu_model = menu_model_->GetSubmenuModelAt(i);
      *button = static_cast<views::MenuButton*>(children[i]);
      return true;
    }
  }
  return false;
}
void MenuBar::OnBeforeExecuteCommand() {
  if (GetPaneFocusTraversable() != nullptr) {
    RemovePaneFocus();
  }
  window_->RestoreFocus();
}
void MenuBar::OnMenuClosed() {
  SetAcceleratorVisibility(true);
}
bool MenuBar::AcceleratorPressed(const ui::Accelerator& accelerator) {