Suggestion: add support for Funkwhale
Describe the improvement
Funkwhale (funkwhale.audio) is a federated music platform. While the only thing that currently uses ActivityPub is profiles (no content), libraries are federated across instances, so it's still a federated project (plus, more federation support is coming soon).
It would be very useful to be able to use Funkwhale in Fedilab (especially if it could play in the background like Spotify, or while browsing elsewhere in the app).