This is an effort to improve general performance at song select. At
least on the metal renderer, I can notice very high draw frame overheads
related to texture uploads.
By reducing the size of the texture uploads to roughly match what is
actually being displayed on screen (using a relatively inexpensive crop
operation), we can bastly reduce stuttering both during initial load and
carousel scroll.
You might ask if it's safe to disable mipmapping, but I've tested with
lower resolutions and bilinear filtering seems to handle just fine.
Bilinear without mipmaps only falls apart when you scale below 50% and
we're not going too far past that at minimum game scale, if at all.
In stable, the storyboard filename is fixed. In lazer, we were always
looking for the first `.osb` in the database. In the case a beatmap
archive housed more than one `.osb` files, this may load the incorrect
one.
Using `GetDisplayString` here feels like it could potentially go wrong
in the future, so I'm open to hard-coding this locally (or using string
manipulation to remove the ` [creator_name]` portion of the beatmap's
filename). Open to opinions on that.
Fixes storyboard playback in https://osu.ppy.sh/beatmapsets/1913687#osu/3947758
This paves the way for the framework code quality change
(https://github.com/ppy/osu-framework/pull/4873) which stops exposing
the constructor.
Most of the restructuring here is required to give `PreviewTrackManager`
an adjustable target to apply the global mute.
