Add support for focusVisibile

Added in [WebKit in 2024](https://github.com/WebKit/WebKit/pull/32833) and [Blink a few weeks ago](https://issuetracker.google.com/462191849) 👀 Want to have another PR?

_Originally posted by @saschanaz in https://github.com/microsoft/TypeScript-DOM-lib-generator/pull/2294#discussion_r2636376982_
            