MEGA Margot Robbie wowed fans with her Cannes dive ahead of the pandemic, and fans haven’t forgotten the photos. In 2019, the Barbie star stripped down to a stylish white bathing suit while enjoying her luxury hotel, spending time in the French resort town amid the Cannes Film Festival. Enjoying some downtime between public appearances, Margot made the most of her lido location for a quick dive and swim, turning heads in a clingy, one-shouldered…