Saint Levant, the Palestinian-French-Algerian-Serbian rapper who’s found viral fame online, made his Coachella debut over the weekend, bringing eminently danceable beats and Palestinian solidarity to the stage. The 23-year-old played a set scheduled for a time conflicting with the highly anticipated No Doubt reunion but still packed the desert festival’s Gobi Tent, where he played both his hits and newer work to a sea of fans, many sporting keffiyehs and waving Palestinian flags. “There’s so many people we wanted to see at the same time — but this was a hundred percent where we were coming,” …