Bountycaster Boosts - boost bounties to have bounty bot repost it

New Bountycaster feature: We added a "boost" button to each bounty frame. For bounties that need more attention or are time-sensitive, the bounty poster or any other user can boost a bounty and have @bountybot re-post it in /bounties for 10 USDC (paid on Base through transaction frame) Feedback always welcome!