Hotfix Update for Demo - 1.0.4-demo

• letters don't show up in level select anymore when not playing as Hana
• fixed z-fighting in certain stages
• fixed vertical camera speed setting not affecting vertical camera speed
• (mostly) fixed getting stuck on water slides in very specific circumstances, now has a fail-safe in case the bug gets triggered
• flattened one of the problematic water slides in Park01 to (hopefully) fix the weird getting stuck issue thing
• fixed some softlock spots on crystals in Park01 (S3A1)
• fixed sometimes not being able to jump out of bubbles under very specific conditions
• fixed clipping water plane in Shrine02 (S1A2)
• fixed clipping cloud plane in Shrine01 (S1A1)