Improve osu!mania playability on mobile devices
OrientationManager
See https://github.com/ppy/osu/discussions/31412. Probably safe enough.
* Move error function implementation to osu.Game.Rulesets.Difficulty.Utils * Rename ErrorFunction.cs to DifficultyCalculationUtils_ErrorFunction.cs
FormatStarRating()
As proposed in https://github.com/ppy/osu-server-beatmap-submission/pull/5#discussion_r1861680837.
This reverts commit bf245aa9d6.
bf245aa9d6