Feature Request: Add an onChange prop to the ListButton on the Listbox component?

[pdevito3]

So I have a type ahead component that would be a perfect port to a headless ui Listbox component.

The idea of the component is to have something like this headless Listbox component, but that renders an input instead of a button and when a user types into that input, it could filter down the source list.

The goal of the enhancement would be to set the Listbox.Button to use an input element for the as prop and then pass the Listbox.Button an onChange prop to filter down the source list as they type.

[pdevito3]

@RobinMalfait if you're open to this I can take a crack at a PR. just let me know! don't want to spend time on it if you're not interested