Update v1.1.0

Fixed a few bugs

- Warriors actually do damage

- Archer takes knockback when frozen

- Archer no longer turns transparent when repeatedly frozen

- Hearts no longer collide with each other

- Progress bar fixed for really high waves

Game was too easy, so I made it harder

- Explosion can no longer freeze enemies

- Attack speed and ability cooldown are capped (those upgrades will no longer appear after a certain point)

- Enemy damage now scales, and health scaling is now exponential instead of linear