Update 1/27/21

Minor tweaks to the game (mostly polish, with a few minor gameplay tweaks)

• Title screen now has transition/loading screen
• Enemies are now "stunned" after being hit, causing them to stop moving for a short time
• Enemies no longer need to physically collide with the player to hurt them, but still have to come very close
• Spawn rate for enemies was reduced, now the rate becomes higher the longer the player is alive