In honour of the glorious Lauren Bacall's 89th birthday, let's revisit this perfect Vanity Fair profile from 2011: The apartment is cavernous, on a high floor of the Dakota, on Manhattan’s Upper West Side. Huge windows overlook Central Park, 30 feet above the tree line, with the grand residential buildings of Fifth Avenue in the distance. My meetings with Lauren Bacall, who is 86, are at three P.M. in the winter, so the light…