New Content:
- Added a new enemy: "Devil"

- Added a new boss: "Yerlik"

- After Day 10, there is now a 10% chance to spawn a random boss every night. Additionally, the number of spawned enemies will increase with each passing day.
Fixed Bugs:
- Re-enabled the green fog shader everywhere on the map; it was accidentally deactivated.
- Fixed a bug where reaching level 4 with a unit or hero caused the game to crash. For now, the max level is 3.
Open Bugs:
- The game sometimes crashes when all heroes and units are dead, although the progress of the run is saved afterward.
- The game sometimes crashes after a run when you click the unlockables button in the main menu.
- Sometimes a hero/unit gets teleported to the village center when the night starts.
