Support for Svelte 4 or Svelte 5

[msdrigg]

Describe the bug
This library doesn't support Svelte 4 or 5 because it imports get_current_component from svelte/internal which is a warning in svelte 4 and a hard error in svelte 5. There is no clear workaround for using this import in svelte 5 sveltejs/svelte#9189

To Reproduce
Any repo with svelte 5 and svelte-headless

Library version
Add the version of svelte-headlessui that you are using here: Latest on NPM