Add an option to turn off screen-shake effects

[aft2001]

Optional screenshakes for shit like the OBJECTION stuff would be fine IMO, since it can be funny to see the entire fucking screen shake when a lawyer objects, but otherwise I 100% agree that screenshakes should be primarily a non-intrusive visual cue that won't impact the game all that much at all, and as such can be disabled by people more sensitive to that sort of thing.

I also quite like the idea of doing Confusion instead of Screen Shakes in general though, since it's far more disorientating in a good way without making someone actually sick.