Improve player bottom sheet, in particular fling support

app/build.gradle.kts

app/src/main/AndroidManifest.xml

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

...in/java/audio/funkwhale/ffa/adapters/AlbumsGridAdapter.kt

...in/java/audio/funkwhale/ffa/adapters/BrowseTabsAdapter.kt

.../java/audio/funkwhale/ffa/fragments/NowPlayingFragment.kt

.../java/audio/funkwhale/ffa/utils/BottomSheetIneractable.kt

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

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

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

...java/audio/funkwhale/ffa/viewmodel/NowPlayingViewModel.kt

...n/java/audio/funkwhale/ffa/views/NowPlayingBottomSheet.kt

...src/main/java/audio/funkwhale/ffa/views/NowPlayingView.kt

...rc/main/java/audio/funkwhale/ffa/views/SquareImageView.kt

app/src/main/res/layout-land/activity_main.xml

app/src/main/res/layout-land/fragment_now_playing.xml

app/src/main/res/layout-land/partial_now_playing.xml

app/src/main/res/layout/activity_main.xml

app/src/main/res/layout/fragment_now_playing.xml

app/src/main/res/layout/partial_now_playing.xml