Even a superpower couldn’t take a bite out of the apple. Tech Superpowers, a boutique Apple reseller who made their home on Newbury Street more than 15 years ago, has closed its cozy basement shop, unable to compete with the massive flagship that Apple opened around the corner four years ago. Tech Superpowers is moving to a fourth-floor office space on Stanhope Street in the Back Bay to almost exclusively on providing technology support to its business clients.