SARAH WHITE and MICHAELA CABRERA WHEN Swedish fashion brand Acne Studios last hosted a catwalk show in Paris in January, it ordered dozens of vegan-friendly rice bowls from cafe owner and caterer Pearlyn Lee for models and crew to pick on backstage. Those types of orders have all but dried up since the pandemic forced most luxury labels to cancel parties and presentations. Even as some of the world's biggest brands return to Paris on Monday, few are planning physical shows, a blow for make-up artists, lighting specialists, caterers and hundreds of other businesses in fashion's eco-system. "Basically catering is…