Minotaur 2.0

I've changed the general setup of the labyrinth while keeping the puzzles.

I took the opportunity to add a few elements that I thought would make the game a little prettier and more “finished”, such as sound effects and text.

Finally, I added a few quality-of-life elements, such as the ability to undo a fatal move, and a way to skip different sections after having already done them (without using a save).