Improved disable logic

[GourabSN]

Improved func _input(event) to make the disable function work. Before this, disabling a button only disabled its texture but the button itself was clickable and it was taking input.

The changes:

func _input(event):
	if event is InputEventScreenTouch:
		if not event.pressed:
			if touch_index == event.index:
				release()
			return
			
		if disabled:
			return
			
		if is_in(event.position):
			if released:
				touch_index = event.index
				press()
			else:
				release()

Before:

After: