CORAL SPRINGS, Fla. — Marly Métayer, the mother of slain Coral Springs Vice Mayor Nancy Métayer, has filed to run for the commission seat once held by her daughter, according to city campaign finance records. Her campaign manager, David Métellus, confirmed to The Miami Herald that she officially filed to run on May 12 for the fall election. “She wants to earn it,” Métellus said. The Coral Springs City Commission comprises five commissioners, in…