Add Treasure Map Cooldown Timer

[Lithier]

Maps acquire should either be reduced to every 12 hours or increased to 24 hours. Who came up with 18 hours? Such an odd, random choice.

Actually, I appreciate the choice, moreso because they don't show the timer. 18 hours means that if you only remember to get a map right before going to bed, you can still get your next one early in the evening the next day. It's intended to be something you gather daily without running around trying to gather something you can't get. But I absolutely agree that they should include visible timers for this, and it would've been nice of them to clarify how the dailies worked for refreshing besides.