[Menu] When exit animation is running pointer events still fire

[hipstersmoothie]

Bug report

Current Behavior

When using an exit animation with a menu the pointer events to move focus still fire. This can make it hard to focus on something other than the menu/trigger when clicking a menu item

Expected behavior

Once I click on a menu item the events should no longer fire to manage focus

Reproducible example

Notice how logs still happen while the menu is closing

https://codesandbox.io/s/cool-feather-p4mqz5?file=/App.js

Suggested solution

We have a pretty common pattern in our app where we open/focus on something other than the trigger when clicking a menu item. This could be a popover, modal, or really anything else. In our code right now we constantly have to battle the menu's focus management to make it work for these cases. Two things I would want:

1. Events to move focus don't fire as the menu is running an exit animation (I can make a PR for this)
2. A prop on the menu item to not return focus to the trigger. I know I can wire this up through existing props but it's clunky and I have to repeat the same pattern everywhere

[benoitgrelard]

This looks like something we may want to handle generally for all components that can "close" via unmount animation.
Presence might be the right candidate here.