Move over KFC, Popeyes and Chick-fil-A. McDonald’s wants a bigger bite of the chicken business. Having already seen its shares plunge by 27 per cent from an all-time high in late February, the world’s biggest fast-food group put chicken at the heart of a new strategy unveiled on Wednesday. McDonald’s is looking to capture more of the fastest-growing segment of the quick-service restaurants market at a time when consumers are watching their spending and GLP-1 drugs are reshaping eating habits.“We are global leaders by a wide margin in beef with more than 40 per cent share in a $50 billion…