[MenuUnstyled] Fix keyboard accessibility of menu items

[michaldudak]

Fixed being unable to select a menuItem by a keyboard when its root component was overridden.
Now, when focusManagement of a Listbox is set to 'DOM', it lets the listbox item to handle the keyboard events and doesn't call preventDefault when space or enter are pressed.

Fixes #31796

[mui-bot]

Details of bundle changes

Generated by 🚫 dangerJS against 5c2ab97

[siriwatknp]

@michaldudak Would it be possible to add a test for this?

[michaldudak]

Not specifically for being able to activate links using a keyboard, as this is not testable AFAIK.
I guess I could create a test that verifies if preventDefault is called in various cases instead.

[siriwatknp]

👍 Awesome