ScrnTimerCommand may have FadeIn and FadeOut swapped

[adierking]

From @Kobazco:

hi i just wanted to comment that you have 2 and 3 swapped (in both here and the git hub still)
2 is FadeOut, 3 is FadeIn. well I haven't confirmed on 2 but it was doing nothing and is only used in scenarios where it would make sense to fade out, and using 3 made it fade in for me after much trying to get it to show

unplug/unplug/src/event/command.rs

Lines 817 to 826 in 1097faf

	pub enum ScrnTimerCommand {
	Get => -4,
	Set(Expr) => -3,
	Pause => -2,
	Unpause => -1,
	Show => 0,
	Hide => 1,
	FadeIn => 2,
	FadeOut => 3,
	}