This regressed with https://github.com/ppy/osu/pull/19556. Rather than
try and figure whether that new container needs to handle size
differently, this is a simple solution.
Height was taken from a runtime check (maxes out at about 14.5).
Closes#20235.
Now, nothing touches the configuration apart from `OsuGame`, making
everything else flow better and avoid weird cyclic set bugs.
Closes https://github.com/ppy/osu/issues/20234.