Add ability to use style objects in Transition instead of classes

[demeralde]

I'm using twin.macro, which converts Tailwind's styled classes into style objects.

I'd like to use this with the Transition component. However, it only accepts class name strings for props such as the following:

<Transition
  show={show}
  as={Fragment}
  enter="transform ease-out duration-300 transition"
  enterFrom="translate-y-2 opacity-0 sm:translate-y-0 sm:translate-x-2"
  enterTo="translate-y-0 opacity-100 sm:translate-x-0"
  leave="transition ease-in duration-100"
  leaveFrom="opacity-100"
  leaveTo="opacity-0"
/>

Therefore it's not compatible with twin.macro.

This would also be a workaround for my problem here with PurgeCSS.