Updated position numbers to match those in the game.

Added a separate toggle for the darkness around the edge of the screen so it can be changed to suit the user's preference. (On by default)

I appreciate the feedback from those who made suggestions!

Added options to manually select a hero for each party slot. Random slots will still select a hero from those not already chosen, but this allows comps with duplicate heroes to be set manually. Because everyone knows Quad Lepers OP.

Tidied scripts