closes #1141, #1143

This PR fixes how we handle escape presses when dealing with multiple nested floating elements by maintaining a stack of the open elements. This was part of #1080 but I realized that it changed too many things and would make it unnecessarily difficult to review.

Here is a video showing nested floating elements and outside escape presses only closing the top-most floating element.

Previously we added closeOnEscape to the dependencies in the effect of every builder that was interested in the escape behavior. This breaks as soon as we use stacks, since updating closeOnEscape while an element is open removes the element from stack and then adds it to the top of the stack. To prevent that, this PR allows passing the closeOnEscape store to useEscapeKeydown which therefore allows updating closeOnEscape without reseting the position of the element in the stack. I added tests for this as well.

Now that we use a stack to keep track of open elements that are listening to the escape presses, I had to remove a lot of extra keydown event listeners that we had in many builders that would interfere when using multiple nested elements.

This PR also replaces the closeOnEscape builder prop with escapeBehavior which provides even further fine-grained control over the escape behavior in builders.

Previously when dealing with multiple nested floating elements and passing closeOnEscape: false to a child element, when the escape key was pressed, both the parent and the child would close. I would expect neither the parent nor the child to close since I explicitly "asked" the child not to close on escape. So previously there was no way to force an element to stay open when escape is pressed without triggering the parent to close as well.

To allow more fine-grained behaviors, we now introduce the escapeBehavior prop:

• close: Closes the element immediately.
• ignore: Prevents the element from closing and also blocks the parent element from closing in response to the Escape key.
• defer-otherwise-close: Delegates the action to the parent element. If no parent is found, it closes the element.
• defer-otherwise-ignore: Delegates the action to the parent element. If no parent is found, nothing is done.

Here are videos showing the behavior of adding different escapeBehavior values to a popover that is nested inside a dialog. The dialog's escapeBehavior is close.

Popover escapeBehavior: 'close'

Popover escapeBehavior: 'ignore'

Popover escapeBehavior: 'defer-otherwise-ignore'

Popover escapeBehavior: 'defer-otherwise-close'

Popover escapeBehavior: 'defer-otherwise-close' mounted as a single element