Adelle Jenna Brown, almost 3, and Scarlett Sage Leitner, 2, weren’t officially part of the San Diego Opera’s first outdoor staging of “Cinderella.” But they danced and twirled Saturday only feet from the mostly college-age performers at the Santee Trolley Square Amphitheatre. And like the opera’s namesake, the girls with tiaras had a ball. “It […]