Handle multi-type activities
Activity type can be an array, not just a single string, so the code at https://gitlab.com/experimentslabs/federails/-/blob/main/lib/fediverse/inbox.rb#L24 needs updating to handle those cases.
Activity type can be an array, not just a single string, so the code at https://gitlab.com/experimentslabs/federails/-/blob/main/lib/fediverse/inbox.rb#L24 needs updating to handle those cases.