Microsoft is cutting 4,800 jobs, about 2.1% of its global workforce, including a large number of workers at its Xbox video game business. The layoffs included 1,600 Xbox workers, with more to come this year in a broader reorganization designed to “reset” Xbox as it faces heightened competition, the company said Monday. “Our business today is not healthy,” said a memo from Xbox CEO Asha Sharma, who took over the gaming division earlier this year. “We are operating at margins that are 3-10x lower