They’re finally settled. “It’s good to be home,” Meghan Markle, 39, gushed of being back in the U.S. in an Aug. 14 video chat. And she likely meant it in more ways than one: Seven months after leaving royal life in the U.K., she and Prince Harry, 35, have moved into a new house with son Archie, 15 months, their rep confirms. The $14.65 million spread is in Montecito, Calif., 100 miles north of LA. “It’s a great place for anyone who wants to be left alone,” a neighbor tells In Touch . “People here don’t invite you over for a barbecue.” But they may not need to go out. The 18,671 square-foot Mediterranean-style manse has nine bedrooms, 16 bathrooms, a gym, a theater and an arcade room, while the…