Merge branch 'housekeeping/remove-warnings' into 'develop'

app/src/main/java/audio/funkwhale/ffa/FFA.kt

.../java/audio/funkwhale/ffa/activities/DownloadsActivity.kt

.../main/java/audio/funkwhale/ffa/activities/MainActivity.kt

...ain/java/audio/funkwhale/ffa/activities/SearchActivity.kt

...n/java/audio/funkwhale/ffa/activities/SettingsActivity.kt

...ain/java/audio/funkwhale/ffa/activities/SplashActivity.kt

...java/audio/funkwhale/ffa/playback/MediaControlsManager.kt

app/src/main/java/audio/funkwhale/ffa/playback/PinService.kt

...c/main/java/audio/funkwhale/ffa/playback/PlayerService.kt

...rc/main/java/audio/funkwhale/ffa/playback/QueueManager.kt

...a/audio/funkwhale/ffa/repositories/FavoritesRepository.kt

...java/audio/funkwhale/ffa/repositories/SearchRepository.kt

...java/audio/funkwhale/ffa/repositories/TracksRepository.kt

app/src/main/java/audio/funkwhale/ffa/utils/Bus.kt