Post jam update

Hi! I have a few updates from the original version:

• Web build: You can play this game in your browser now!
• New Level: Level "Sculpture" was added.
• Gentle Difficulty: Made some changes to make the difficulty curve smoother.
  • Moved level "Key Hole" to much later in the game because it's quite difficult.
  • Tweaked level "Ring" and "Key Hole".

The web build is missing a couple of features like save data and key rebinding, but all the levels are same between the web build and the Windows build.