Add input toggles to the PlayerLoader screen

[UselessToucan]

[peppy]

Mouse buttons maybe, but I'm not sure why we need mouse wheel here. It sounds like something you'd set once and leave it in place.

The loading screen should only contain quick-access settings which are regularly changed by users.

[peppy]

Why did you change the margins?

[UselessToucan]

For consistency with the player screen. In my opinion, it looks better this way.

[peppy]

let’s not. if you want such consistency the UI should be shared

[UselessToucan]