By Joseph Wilkes A powerful quote from Kate Middleton as she bravely announced her cancer diagnosis on camera was “very similar to what Queen Elizabeth said during Covid”, an expert has said. The Princess of Wales announced her difficult news to the world in a video filmed at Windsor Castle, overcoming a personal hurdle to do so and remaining “dignified”, Royal biographer Vanity Fair contributing editor, Sally Bedell Smith, said. Speaking to People magazine, journalist and royal commentator Bedell Smith said it would have taken a lot for Kate, who is naturally shy, to deliver such big news on …