Someone is planning to open up a “Golden Girls”-themed restaurant, but sadly it won’t be in Miami, where the show was set . . . or back in St. Olaf. It’s going to be in Manhattan. It’s called the Rue La Rue Café . . . and it’s dedicated to Rue McClanahan who played Blanche.  The owner is an old friend of hers named Michael LaRue . . . get it, ‘Rue La Rue’? Anyway, the place will have cheesecake, soups, wraps, salads, desserts, baked stuff, and wine.  It’s supposed to open in early September, and he says Betty White has agreed to be there for the ribbon-cutting ceremony.