More sound design

I made a new background music for the game. The previously used background music was an old track by me, but I felt that it didn't quite fit the game. The new music is more subtle, allowing the player's senses to focus on the game. I also switched the ending music to another old track of mine, but I'll probably make a new tune for that too. Lastly, there's now a foot step sound too.

Cheers!