It wasn’t immediately clear how she died, but the impact on the people she left behind was starkly felt Tuesday night. “She really was the heart of Hoboken, she is beloved by so many people in this community,” Councilwoman Tiffanie Fisher told The Post. “I’m lucky that I got to call her one of my closest friends, but she was close friends with so many in our community.” Fisher said she got to know Giattino when Fisher first ran for office nearly 10 years ago because the pair were on the same ticket. “There is no better councilperson than her,”...