Meghan Markle has taken a major ratings bump among millions of Britons, raising her to within a hair’s breadth of Prince William, a new survey has found. Fresh data from pollsters at YouGov has handed the Duchess of Sussex a boost among Generation Z-ers in the UK, a group among which she now sees a net favourable score. Though the much-maligned duchess is still yet to see a total positive rating higher than 50 per cent, 18-24-year-olds surveyed by YouGov handed Meghan a 48 per cent positive score, and a net 18 per cent positive rating. Some 30 per cent of the group rated Meghan either fairly o…