New UI, Bug Fixes, and Installer!

- New installer, no more .zip folders :- )

- Custom cursor, made in-house 

- Custom Icon, made in-house

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Bug fixes:

- Fixed the occasional "floating player" bug in side rooms

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Known Issues:

- Cats and other animals occasionally walk backwards.

- Occasional delayed player death animation after receiving damage.

- Occasional sound effect delayed end when leaving and entering rooms.