Ändrade config värden

Playing Field
- Increased height & lowered width of the zone slightly

Players
- Decreased speed from 30 to 22
- Increased respawn timer by 250%
- Increased push cooldown by 500%

Controls
- Changed player 2 keyboard controls (players push with ENTER & use
power-ups with BACKSPACE)
Changed controls

Player 1
- Still use WAD

New controls for Player 2
- Use I, J, L to move, O for power-up & U for push

Player 3 & 4
- Use arrow-keys