Switch does not support tabindex

[tristanlins]

What package within Headless UI are you using?

@headlessui/vue

What version of that package are you using?

v1.6.5

What browser are you using?

Chrome, Firefox

Reproduction URL

https://codesandbox.io/p/sandbox/nice-davinci-9xvtxj

Describe your issue

The <Switch> <button> element always has tabindex=0, setting <Switch tabindex="X"> will not change the tabindex!

[RobinMalfait]

Hey!

This should be fixed by #2966, and will be available in the next release.

You can already try it using:

• npm install @headlessui/react@insiders.
• npm install @headlessui/vue@insiders.

Note: you can pass anything but -1 because we still need the Switch to be focusable via the keyboard.