Animate skip transitions

[OxygenCobalt]

Spun off from #94. Effectively, animate the transitions between covers in a way that does not use ViewPager and works with the gestures added. This is somewhat difficult and not high priority.

[KraXen72]

+1, as currently the gesture works, but feels unfinished and unintuitive, since there's no feedback you started a proper, song-skipping swipe.

my idea for an animation, based on your mockup:
an overlay of accent color above the album cover, with a skip/prev icon centered and the title of the song below. the opacity of this overlay scales with swipe length, and get's fully opaque when letting go of the swipe would trigger the skip/prev.
it's fine if it would take a longer ish swipe than normal if it looks good.
bonus points if it also looks good when swiping quickly, so that there isn't just a flash of the overlay. maybe some delay? idk.

the original viewpager idea would be nice from a ui/ux point but i understand there are difficulties with it.

[OxygenCobalt]

The current blocker is that I actually want to do a viewpager-ish animation, but by manually stacking three images and manipulating their position. The issue lies in that this is really difficult. A skip gesture icon by itself might come first, assuming I can locate where that cool liquid drop animation the new back gesture icon uses in Android 14.