Add a way to easily show a CodeBlock in addition to a QueryViewer when declaring a query

[ItsMeBrianD]

From a user:

I think being able to easily show snippets of sql code would be really handy for more technical audiences (like sharing between BI roles, engineers, etc.). Having something like @sql/#sql/@query/#query would make it feel less magical and more inline with the way partial or if/else and loops are defined

Current workaround is:

    ```sql my_query
    SELECT * FROM something
    ```

<CodeBlock language="sql">{my_query.originalText}</CodeBlock>