One chat to rule them all. Dominic Monaghan has offered a rare peek inside the private group chat he shares with his “Lord of the Rings” co-stars, and what the four Hobbits are actually texting about more than two decades after saving Middle-earth. Monaghan, who played the ever-loyal Merry Brandybuck in Peter Jackson’s Oscar-winning trilogy, revealed that the actors still keep multiple threads going, including one exclusively for the Shire’s finest. The other three members of the tight-knit