On Thursday, first lady Melania Trump dressed in head-to-toe sequins for the White House Historical Association Dinner in the State Dining Room. Back home on Pennsylvania Avenue, after a day spent in Irma-ravaged Florida with her husband, president Donald Trump, FLOTUS switched gears, and slipped on a glittery getup by Monique Lhuillier for the night. After ditching her white jeans and sneakers, Melania reemerged ready for the black-tie event, …