“Miracle” at Pacific Cocktail Haven gives us lots of holiday kitsch in San Francisco — By M. T. Eley Merry Christmas, Union square. Pardon if the Yuletide cinema references are a little thick today: the Miracle on Sutter Street, currently encamped at Pacific Cocktail Haven, is snowed over in kitsch Christmas comfort, wrapping paper, holiday pin-ups, dangling lights and the occasional flurry out front, and…