There was none of the usual postgame chatter or music in the Cavaliers’ locker room. The mood was somber and quiet. “Right now, we’re in Strugglesville,” LeBron James said, “but it felt like a win. We needed it. Definitely.” Isaiah Thomas made two free throws with 11 seconds left and, after wasting a 23-point lead, host Cleveland came up with a stop in the frantic final seconds to beat Orlando 104-103 on Thursday night and snap a losing streak at four games. After Thomas made his shots, Orlando’s Elfrid Payton missed a contested layup with three seconds left.