[Feedback] https://sql-clickhouse.clickhouse.com/play seems to be broken

Feedback from the widget on https://clickhouse.com/docs/use-cases/observability/clickstack/getting-started/remote-demo-data

> https://sql-clickhouse.clickhouse.com/play seems to be broken. I got Code: 164. DB::Exception: Cannot modify 'extremes' setting in readonly mode. (READONLY) (version 25.5.1.34575 (official build))