COSMETICALLY altered socialite Jocelyn Wildenstein is the latest buyer at the Plaza. The Post’s Braden Keil reports the former “Bride of Wildenstein” just closed on a fifth-floor apartment for $7.96 million. The park-fronting pad has 3,000 square feet, three bedrooms, and three baths. “It will be a very exciting place to live,” feline-faced Jocelyn was previously overheard purring. “I can’t wait until it’s ready.” And, we imagine, neither can her neighbors, Harry Macklowe, James Cayne and New England Patriot owner Robert Kraft.