In downtown Seattle’s commercial core, retail workers have doubled as first responders, doormen have been deployed to keep unwelcome visitors out and some buildings are still sitting empty as employers worry about the safety of workers and customers. Amazon is the latest company to react. It is temporarily moving workers from its space in the building at Third Avenue and Pine Street that until 2019 held the downtown Macy’s store, a spokesperson for the company said Friday. The office’s 1,800 employees have been working remotely during the pandemic; rather than returning to the desks they left …