Channing Tatum and Jenna Dewan want to put their nasty court battle in the past. Despite a judge declaring them each legally single five years ago after their 2018 split, the former couple have continued to fight over money and assets. “It was contentious from the start,” an insider claimed of Tatum, 43, and Dewan, also 43, ending their nine-year marriage. “They fought about everything from posting their daughter [Everly, 10] on social media to custody to assets.” Their feuding also worsened when it came to dividing their money, which mainly include the 22 Jump Street star’s lucrative earnings…