Remove assert which is not always true on some operating systems
Fix osu! logo on main menu ending up in the wrong place
Also switch to using BeginDelayedSequence where possible.
No longer required as mono 5.0 upwards handles this gracefully (while not yet adding full parallel support).
Update framework
Update transform usage in line with framework changes
TestCase for BeatSyncedContainer
Set RelativeSizeAxes for updated FillMode behavior
Changes in line with framework updates
Update test cases to new framework and fix old crashes