By Mollie Quirk Meghan Markle and Prince Harry have been issued a warning by a public relations guru that “one more wrong move could see their rebrand in tatters”, as they attempt to save face in 2024. The couple, who stepped back from being senior working royals in 2020 before moving to the States, have been easing themselves back into the public eye recently. The Duke and Duchess of Sussex have been working on exciting projects and attending glitzy events, with them thought to be trying to rebrand themselves and their brand this year. Just last week they relaunched their website, which came …