The Uptown restaurant and bar Happiest Hour near the American Airlines Center was abuzz before the Stars and Maple Leaf’s hockey game last week.

The Uptown restaurant and bar Happiest Hour near the American Airlines Center was abuzz before the Stars’ hockey game last week. The music was loud, the windows and doors were all open on a near-perfect evening. Fans in Maple Leafs and Stars jerseys spilled out onto the lawn, upstairs, downstairs and crowded around the bar.…