Hi, thanks for having this awesome library, it has been very helpful.

There seems to be a bug when using menuPosition fixed with react select except of course I am missing something.

The menu position should be with the select box when scrolling the page vertically but its fixed and isn't recalculated on scroll.

I have reproduced it here
https://codesandbox.io/s/react-codesandboxer-example-xy47y