Keep masking back in `Content`, since the scaling animation is happening
on `Content` instead of `this`. This doesn't regress the intended
behaviour in this PR (which is to just to make the button class itself
sheared instead of its content).
The sorting logic is now exercised in
`TestSceneSoloGameplayLeaderboardProvider`. Trying to work around
it with local test classes would mean that the test would be covering
test code, i.e. complete nonsense and having a green test for the sake
of having a green test.
Should be self-explanatory (feedback loop between `reloadMetadata()`
changing text box current, and text box current changing calling
`applyMetadata()`).
I was testing with mp3s ripped via Apple Music and for whatever reason
the artist was in `JoinedPerformers` rather than `JoinedAlbumArtist`.
I'm not about to go down and do research on id3 so I'm just going to try
this and see if anyone complains.