MEGA Hailey Bieber is getting straight-up trashed over her 2026 Met Gala look as fans deem her fashion choice “uninteresting” and “boring.” The supermodel formed part of the celebrity crowd attending the annual extravaganza two nights ago, where the theme was “Costume Art” and the dress code was “Fashion is Art.” Joining fellow supermodel Kendall Jenner on the red carpet, Hailey made headlines for attending the Met Gala without husband Justin Bi…