The Illinois Supreme Court on Monday named a Cook County circuit judge and former state courts administrator to the 1st District Appellate Court as one of the appeals court’s sitting members retires from the bench today. Circuit Judge Cynthia Y. Cobbs, who was the director of the Administrative Office of the Illinois Courts from 2002 through 2011, will join the state appellate court on Wednesday. Her appointment comes as Justice James R. Epstein, who joined the court in 2010, is leaving to become a mediator …