Now’s a good time to load up on gourmet chocolate: The Back Bay’s Hotel Chocolat (141 Newbury St. at Dartmouth St.) closes on Sept. 24, or sooner if they run out of sweets. All merchandise is 50 percent off until then. “The company decided to go in a new direction and focus on the United Kingdom and Europe as their primary market,” says store manager Matthew Copeland, who notes that his staff has found new jobs. The London-based shop opened here in November 2009.