Implement relayouting of submenus if menu is changed

[X512]

This hrev53937.

When menu is changed by inserting or removing items and submenu is open, menu size can change become inconsistent with submenu position. We may need to recursively relayout submenus when menu size is changed or menu is scrolled. Note that submenus relayouting is not trivial, just reposition can cause submenus going outside of screen. Screen height submenus with scrollers should be not moved vertically. When changed menu width increase, submenus may go out of screen horizontally and need to change open direction.

As I understand, other OS do not implement this feature and I am not sure that it is required as it can be annoying. This feature need to be discussed.

Situation in Windows: ​https://stackoverflow.com/questions/13224099/how-to-update-context-menu-already-displayed-with-trackpopupmenu-in-c/13224228.

[X512]

Implementation in ​https://review.haiku-os.org/c/haiku/+/2309 is not enough because it not take in account possibility of going submenus out of screen when moving.

[X512]

Simple approach to solve issue can be just close submenus when menu is changed.

[X512]

Proposed fix: ​https://review.haiku-os.org/c/haiku/+/2324.