The Galvan at Twinbrook project took a step forward last week with the opening of its first tenant, a 62,000-square-foot Safeway store along Rockville Pike near the Twinbrook Metro station. Other businesses scheduled to open soon include Smashburger, Capriotti’s Sandwich Shop, Dunkin’ Donuts, a Pie 360 pizza restaurant and Floyd’s 99 Barbershop. And the Ethan Allen Design Center, which once stood at that spot, will be moving back after two years at a temporary location elsewhere on the Pike.