Day 1 Hotfix LOL - 1.32.1

this should fix a lot of initial issues found in 1.32.0!

Changelog:
The Startup screen is now toggleable
Added Classic Notesplashes (to match with the Classic Noteskin)
Added legacy Hurt Notes as a fallback to fix a crash that would occur if you turned off "Enable Color Shader" and added a Hurt Note
Reverted the Playable Character system as it made it harder to make playable characters
Fixed a bug where if you took a screenshot right as you transitioned through a menu/song it would break
Fixed an issue where certain 0.7 noteskins would make the notes smaller than the strums (only applies to PlayState because i couldn't fix it in the editor)
Fixed Hurt Notes keeping their texture way beyond being created OR its texture being reverted to default when it shouldn't.
Fixed Pixel Sustain Notes being too large
Fixed Hurt Notes/Character specific Noteskins being offcenter (Turning off Enable Color shader will uncenter 0.7 noteskins.. but it works so)
Fixed some notes being affected by 0.7 colors if the note is a character-specific texture
Fixed noteSplashes crash if a song has its splash skin set to 'noteSplashes' and the images folder doesn't contain "noteSplashes.png"

Note Color menu-specific:
The engine will now actively refuse to load Pixel Note sprites if the engine can't find any for your specific noteskin.
The RGB shaders now actually update according to whether or not you're in Pixel Mode