Update LS button panel to single player

[loothero]

The current LS machine has cutouts for two sets of joysticks and buttons. This takes up a significant amount of real estate on the button panel that could be used for instructions.

The simplest way to achieve this is to contact GRS and have them send us another button panel without the cutouts along with a new decal. Before we do this, we should try and solidify out button layouts so that the updated graphic can include instructions for LS