Cats are Liquid - ABP

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Fixes:
- Fixed current ability not being saved when entering a checkpoint while inside an ice block.
- Fixed ice blocks which were not controlled by the player activating checkpoints.
- Fixed the Companion being immune to the void. (Thanks, Erik!)
- Fixed hidden platforms being able to kill the cat while the map was being loaded.
- Fixed cat's face being rendered behind the light flash ability's light.
- Other fixes.