New York and New Jersey are barreling toward more travel chaos for Tuesday’s World Cup game at MetLife Stadium as up to 50,000 train tickets remain unsold — but Mayor Zohran Mamdani is brushing off the looming disaster. Thousands of fans are apparently intent on getting to the 3 p.m. match-up between France and Senegal at the East Rutherford, NJ, stadium any way but by train — which costs an outrageous $98 for the mandatory two-way NJ Transit ticket. While New York state has buses lined up for $