Kevin Hart extended “an olive branch of peace” to Katt Williams on Sunday after “years on years … at odds.” During the “Roast of Kevin Hart” on Netflix over the weekend, Williams made a shock appearance onstage. “You coming out here, quite the f–king surprise,” Hart, 46, said. “But, Katt, I can sit and I can watch you, I can laugh, because I’m a f–king fan first, OK? I’m a fan first.” Getty Images for Netflix Getty Images for Netflix He pointed out that they “have an opportunity in real time [on] live television to put [their] f–king beef behind” them. The “Ride Along” star said, “I am offering you an olive branch of peace. I want to be a brother, I want to be a friend. Katt, I want to move on. Can we move on, man?” Williams, 54, subsequently shook Hart’s hand and embraced him. Getty Images for Netflix Getty Images for Netflix Later in the roast, Hart joked, “Everybody has said tonight that I can’t act.…