Sandra Cota’s world had grown quiet. The busy pace of her life had slowed in recent years, replaced by long days in her Bronx apartment where the low drone of the television filled the silence between calls from loved ones. “I’m lonely a lot of the time,” Cota, 79, told The Post. “[My daughter] feels that I should have friends and go out and mingle, but I wouldn’t even know how to go about looking for someone to have company with.”  Fortunately, company came to her: Enter ElliQ, the AI-powered