Before there was Polo Bar and Louis Vuitton Café, there was Armani Ristorante. It wasn’t just a fad though; it was a restaurant that served up some of the best Italian in the city. Well, it’s back — and the bet is that it will be better than ever. If there’s one place that screams “luxury lifestyle goals” right now, it’s the new Armani Restaurant on Madison Avenue. Perched above the iconic Armani flagship store, this restaurant promises a dining…