mono on Nostr: テーブルの一番下の横線だけ消すには

{ "id": "6575098cc1b046b1c65639928bb08e5fb506a9b956c50dd8d4b86973928106eb", "pubkey": "84b0c46ab699ac35eb2ca286470b85e081db2087cdef63932236c397417782f5", "created_at": 1730774657, "kind": 1, "tags": [ [ "client", "lumilumi", "31990:84b0c46ab699ac35eb2ca286470b85e081db2087cdef63932236c397417782f5:1727506446612", "wss://relay.nostr.band" ] ], "content": "テーブルの一番下の横線だけ消すには", "sig": "2db2ab5a817317b467307c709481b1752bcf00344db4746f639e9c23a889ee932d0ac3d2018c2a50282fb0dc1a11c3c9dd6ae8cd43e4745821843901a66f5b28" }