Detect fediverse:creator tag

[TomCasavant]

https://blog.joinmastodon.org/2024/07/highlighting-journalism-on-mastodon/

I'm not sure how often this would come up, as I'm still a little unsure of why one would use <meta name="fediverse:creator" content="@username" /> instead of a rel="me" tag or vice-versa. But, I imagine news sites will likely lean towards the fediverse:creator tag and it'd be cool if that showed up in streetpass