Although Mauhaus Cat Cafe(3101 Sutton Boulevard, Maplewood; 314-384-2287) has only been open since November, it's already abundantly clear that these cats' social media game is on point. Whether they're trying to break into trash cans, helping with administrative work or just sitting there looking cute, these St. Louis felines already have Facebook, Twitter and Instagram feeds beyond the wildest dreams of any mere human.…