Add nested hitobject pooling
Update framework
Implement top-level hitobject pooling
Fix slider ends not fading out after a rewind with hidden mod
Prevent SelectionBox handles from appearing for stacks
Add test for accuracy heatmap
Refactor "perform from menu" logic to be aware of dialog prompts
Fix skin fallback test crashing on repeats
Fix storyboard animations of very old beatmaps playing too slow