Selena Gomez just gave Us another reason to refresh our sneaker rotation. The singer, actress and Rare Beauty mogul recently swept through London and documented the whole thing on Instagram, looking effortlessly polished in a way that only she seems to pull off. The standout detail? Crisp white sneakers that quietly stole the show from every cobblestone street and pub-front photo op. Gomez’s off-duty wardrobe looks expensive without screaming fo…