The Republican governor of New Hampshire thinks Vice President Kamala Harris’ team is doing her a disservice and warned her Thursday on Fox News: “Honeymoon’s over.” Chris Sununu hopped on “Your World with Neil Cavuto” and said that while “August was a great honeymoon period,” she’s now back home — and Americans want some accountability with their leaders. Sununu called the debate next week a “pivotal” event and said it won’t just be about who has the better plan on each issue, but “who comes off as more competent, who can kind of hold their own, show their professionalism, show a sense of lea…