ANAHEIM, Calif.—Mickey Mouse’s Toontown at Disneyland will close in March 2022 to undergo a reimagining of the space, alongside a new attraction called Mickey and Minnie’s Runway Railway, theme park officials announced Nov. 15. When Toontown reopens in early 2023, Disneyland officials said, their “imagineers” have envisioned all-new experiences so families and young children will…