- cast and shoot now both use the slot that's visually selected in the hud
- swapping between first/second slot is done only by sneaking
- there are now messages in the hud indicating the spell being cast
- gems now have a cooldown after being used
- holding a gem now changes the selector icon and title to make it clear that spells can be swapped
- activating an ability whilst holding a gem changes the message to indicate you're casting the spell from the gem rather than your spell slot
- ability titles now reflect what they do when sneaking
- equipping a spell from a gem whilst in creative mode no longer consumes the gem's spell
