“The Nutcracker” is one of those holiday traditions that seems to signal the official start of Christmas, but this year, the classic ballet is getting a fresh, community-centered twist thanks to the young performers and instructors at the Morton Street Dance Center. Director Donna Jacobs has spent her life in the arts, and her passion is woven into every rehearsal, every class, and every dancer who steps through the studio doors. “We bring a very diverse group in terms of culture, but also in te