🐛 When the MenuFlyoutItem in MenuFlyout is clicked, Flyout automatically disappears and cannot be controlled.

[hcanyz]

Describe the bug

FlyoutTarget(
  controller: menuController,
  child: Button(
    child: const Text('Options'),
    onPressed: () {
      menuController.showFlyout(
        builder: (context) {
          return MenuFlyout(items: [
            MenuFlyoutItem(
              leading: const Icon(FluentIcons.share),
              text: const Text('Share'),
              onPressed: () {
                // Flyout.of(context).close
              },
            ),
          ]);
        },
      );
    },
  ),
)

Here is an example of mine where the Flayout disappears when Share is clicked. But I didn't call Flyout.of(context).close.

Through the code, I saw that MenuFlyoutItem called Navigator.of(context).maybePop(); in onPressed when build

When using MenuFlyoutItem in DropDownButton, a closeAfterClick parameter controls whether to close FLayout.

Why don't we put closeAfterClick in the MenuFlyoutItem parameter?

[hcanyz]

This also caused incorrect behavior when the MenuFlyoutSubItem parameter showBehavior was set to SubItemShowBehavior.press.

FLayout disappears after clicking MenuFlyoutSubItem.