GK Additions/Rework

I have a few GK ideas that will broaden the skill gap, as well as some QOL changes

QOL ADDITIONS:
- Be able to change the crossbar opacity
- Be able to toggle a constant glowing ball, as sometimes you can lose sight of the ball when a lot of people are crowding the box

(Ordered from most preferred to least)
- Make the ball landing marker appear on a wall along the goal line to show where the ball is going to cross the goal line

- Add extra effort slide to gk with the same speed as all other player’s extra effort slide. However, they do not gain possession and only knock the ball off. Regular slide and sprint slide will gain possession.

- **REWARD AIMING** Don’t get rid of the cursor when activating defensive stance as GK, instead make a circle area for “catching”. When you dive for a ball, if the ball is in this circle crosshair when you make contact with the ball you will catch it. Any other dive will be a deflection (with some exceptions like ground dive saves). This can broaden the skill gap for keepers