Joe Hart was emotional and full of gratitude as he sat down to give his final interview as a Celtic player on Friday. The retiring goalkeeper, who plays at Celtic Park for the last time on Saturday, reflected on his three-year career in Glasgow and shared what this club has meant to him. Hart has made over 150 appearances for the Bhoys since joining in the summer of 2021, over time becoming one of the most popular personalities with supporters. He still has two matches to go before hanging up his gloves for good, including a massive Scottish Cup final against Rangers, so the ever-focused veter…