Feature Request: Choose width in options

Hi Elliot,

Thanks for the great plugin. Cloudflare recently added the ability to control the width somewhat via data-size=”…” attribute. I’ve hacked your plugin to add it (data-size=”flexible” for 100% width), but it’d be cool if you could add a setting for the three options: https://developers.cloudflare.com/turnstile/get-started/client-side-rendering/#widget-size.

Thanks again!