By Matt Hladik After four-plus seasons with the San Francisco 49ers, all signs are indicating Jimmy Garoppolo will be playing elsewhere next year. Garoppolo was the subject of trade rumors last offseason as well, after the 49ers traded up to draft Trey Lance with the third overall pick. On Tuesday, he confirmed to reporters that he and his agents are actively seeking a trade partner this year. On Twitter today, San Francisco defensive lineman Arik Armstead shared a thank you to Garoppolo, who joined the 49ers via trade midway through the 2017 season. “Thank you @JimmyG_10 our team was in some …