feat(ExposeService): ListenBrainz integration

[Feichtmeier]

          And don't forget ListenBrainz, another popular (?) alternative to last.fm

Originally posted by @Derkades in #874 (comment)

https://pub.dev/packages/listenbrainz_dart

[CosmicRaptor]

I'll try to implement this tomorrow! It'll use the same expose service that I added for last.fm so it will have the same issues that our current last.fm build has(ie it scrobbles immediately and not after 30s or half the song played)

[Feichtmeier]

dont know if you checked my code changes after your nice contribution, but I wrapped last fm in a service, would be better if you do this for listenbrainz as well, I need to do this for discord too

[CosmicRaptor]

dont know if you checked my code changes after your nice contribution, but I wrapped last fm in a service, would be better if you do this for listenbrainz as well, I need to do this for discord too

I see. I'll follow the same implementation paradigm!

[Feichtmeier]

Fixed with #1047