With the costs of the closure of one of the world’s most vital maritime arteries growing by the day, salvage teams hoped on Sunday to take advantage of the full moon and swelling tides to dislodge the giant cargo ship stuck in the Suez Canal. Late Saturday, tugboat drivers sounded their horns in celebration of the most visible sign of progress since the ship ran aground late Tuesday: The 220,000-ton Ever Given had moved. Granted, it did not go far — just two degrees, or about 100 feet, according to shipping officials. But that came on top of progress in...