Applies two changes:
- Use `TransformImmediately` which achieves the same wanted transition behaviour without any issues.
- Move the transition behaviour override into `BeatmapListingSearchControl` in a nested subclass of `UpdateableBeatmapSetCover`.
Not the cleanest solution, but works for now. Will eventually be
replaced after the header is updated to reflect the latest designs
(which keeps it on screen in all cases).
Closes https://github.com/ppy/osu/issues/10703.