Travel cancellations are looming amid jet fuel shortages from the ongoing Middle East conflict, potentially leaving some vacationers stranded without recourse — that is, if they overlooked the search for the right insurance policy. As the cost of fuel increased 78% from a year ago to an astonishing $6.5 billion in April, airline forecasters have warned that flight cancellations are inevitable. Travel experts who spoke to The Post said that choosing an insurance plan should be strategic, and