Patch 0.5.4

## [0.5.4]

### Added

- "W" and "Up" keys for jumping.

### Fixed

- The moving platform speed in Stage Zero, making its movement smoother and more consistent.
- A bug that prevented the player from submitting their score to the leaderboard at the end.

### Changed

- The UI of tooltips for each item in the shop.
- The player will now teleport to the starting position instead of restarting the game after reaching the dead zone.