feat: disable boundaries check

[jbflo]

Do you want to request a feature or report a bug?
Bug

What is the current behavior?
When the menu Height is > to window Height the menu top position top goes off-screen
and you can't see some item

  if (_y + menuHeight > windowHeight) {
    _y -= _y + menuHeight - windowHeight;
  }

I would wonder why this minus , cause it cause problem when the menu has a lot of item.
it loose the fix position

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem. Your bug will get fixed much faster if we can run your code and it doesn't have dependencies other than React. :

Just add a lot of item to your Menu , as much as to make the menu height > to the window screen
to have the scroll bar.

What is the expected behavior?
Menu position should preserve the fix position

the Hook function to set the State position i would say it is not necessary or should be updated

Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?
React 16.*
Chrome , Opera, Firefox

[fkhadra]

Actually, this is by design, the position is recomputed using to prevent the menu for going outside the window. I'll add an option to disable the behavior in the next release

[fkhadra]

Fixed by #220