DUBAI, United Arab Emirates — It will work like any other ride-hailing app except that instead of a car, a battery-powered aircraft will swoop in and fly you. Set to launch in Dubai next year, the American company Joby Aviation, Inc. has been developing the technology at Edwards Air Force Base in Texas as well as in the United Arab Emirates , where earlier this month it became the first electric air taxi company to complete a flight in the Middle Eastern country. “It’s an absolutely awesome