Camp Rest should take less time when less stamina needs to be recovered

[McFrugal]

v0.5.2

Currently, if you rest in camp you recover stamina in proportion to the action's progress until it's finished and you're full. If you need to recover like 500 stamina or something this feels reasonable. If you only need to recover 100 stamina it barely recovers any stamina at all per tick so it feels quite unreasonable. You also can't abort the rest action so you're stuck in camp until it finishes, which means resting is a waste of time in that situation.