Small QOL update

This is a minor update to make the beginning of the game a bit more friendly to newcomers, as well as introducing some QOL changes.

What has changed:

• Sword starting speed has been increased while slightly lowering the amount of speed obtained from leveling up agility.

• Sword starting durability has been increased while slightly lowering the amount gained from leveling up strength.

• The amount of insanity required for the Old Man to come to life has been lowered.

• You can now view the controls by pressing backspace on keyboard or select on controller.

• A message now appears when the player dies with the Immortality blessing to indicate that they did not lose a life.

Feel free to suggest anything else, and I will be happy to try to make this game the best that it can be.