Bridget Everett hails from Manhattan — the city in Kansas, that is — yet the actress, comedienne, and song stylist has made the other Manhattan her home as well, becoming known over the years for outrageous cabaret performances at downtown New York City venues such as Joe’s Pub. It’s no surprise, then, that a Midwestern sensibility combines with New York vibes in the HBO show “Somebody Somewhere,” the half-hour comedy-drama loosely based on the performer’s life. Its third and final season starts this Sunday.