Fix issue with row type

src/web/routes/dashboard/export.rs

@@ -60,7 +60,7 @@ pub async fn export_reminders(
                     reminders.embed_image_url,
                     reminders.embed_thumbnail_url,
                     reminders.embed_title,
-                    reminders.embed_fields,
+                    CONVERT(CAST(embed_fields AS BINARY) USING utf8mb4) AS embed_fields,
                     reminders.enabled,
                     reminders.expires,
                     reminders.interval_seconds,