A Cook County judge has tentatively approved a class-action settlement on behalf of consumers who claimed HDMI cable manufacturer Monster Inc. and Best Buy sold cables with misleading packaging.Associate Judge Franklin U. Valderrama gave the preliminary green light to the deal on Tuesday. The action was brought by more than 1 million class members who claim — because of a chart on the back of certain Monster HDMI cables — they were required to purchase a more powerful and expensive cable than necessary to …