When COVID vaccinesfirst became available in January of last year to more than 4 million people, there was a stampede for appointments. Frustrated residents spent hours scouringdozens of vaccine provider websites, trying to secure a coveted slot. Some would wake up in the middle of the night to forage for new listings. The lack of a streamlined or centralized system was especially disconcerting to seniors, who said they had trouble booking appointments online as demand greatly outweighed supply. The state launched its“NJ Vaccine Scheduling System” website on Jan. 5 and even though hundreds of …