Owners of iPhone 6 and iPhone 6 Plus units afflicted by the alleged design defect dubbed “Touch IC Disease” won’t get much aid from the Genius Bar, but a U.S. law firm is looking to help users take Apple to court. After filing a class-action lawsuit against Apple on Saturday for not fixing iPhones with Touch IC Disease, McCuneWright LLP says it’s searching for more iPhone 6 owners who have …