Add support for redirect domains

[lucahammer]

Eg. spacekaren.sucks redirects to profiles, but does not match a known pattern. It should be followed and the target URL tested as a possible fediverse profile. https://sporadically.social/@jordan/109525435150754480

[untitaker]

How about scraping arbitrary websites linked in bio for handles? That might still be doable for you but too expensive for twitter. I think linktr.ee is already banned by twitter and I can imagine that they implement support for url shorteners themselves too.