Move message content to message_json

.sqlx/query-22ea7fbff927d2696e5c3dc78f714d1cb5dadcc560854e22f15def122c64fc0c.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "MySQL",
+  "query": "\n                        INSERT INTO reminders (\n                            `uid`,\n                            `channel_id`,\n                            `thread_id`,\n                            `utc_time`,\n                            `timezone`,\n                            `interval_seconds`,\n                            `interval_days`,\n                            `interval_months`,\n                            `expires`,\n                            `message_json`,\n                            `attachment_name`,\n                            `attachment`,\n                            `set_by`\n                        ) VALUES (\n                            ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?\n                        )\n                        ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 13
+    },
+    "nullable": []
+  },
+  "hash": "22ea7fbff927d2696e5c3dc78f714d1cb5dadcc560854e22f15def122c64fc0c"
+}