Robert “Tish” Muise, the manager of Fran’s Place, stands in front of the soon-to-be-closing bar. Item Photo by Owen O’Rourke By Bridget Turcotte LYNN — Fran’s Place, the state’s oldest gay bar, will close at the end of the month. “Everybody used to call Fran’s Place the Cheers of the North Shore,” said owner Jay…