[Feature Request] Properly list queries in query-handler-not-found error

[cretz]

Is your feature request related to a problem? Please describe.

UI not showing possible queries.

Describe the solution you'd like

Need to put known queries in space-delimited form surrounded by brackets for use in the UI. E.g. "Some query error, queries: [query1 query2]".

Maybe one day we'll get to temporalio/features#51.