Query results should be shown alongside query editor

[mweiden]

Need

User story: As a user of the query service, I'd like to see query results alongside the query editor, so that can write queries based on sample table rows.

Frequently, users of an interactive database will submit initial queries to the database schema and sample table rows in order to iterate on writing/building more complex queries. For example:

1. A starting query might be select * from files limit 10; to get a feel for what rows of the files table look like.
2. Then, comparing the sample rows and the query side-by-side, the user might refine the query. For example adding filter criteria such as in elect * from files as f where f.body ->>'schema_type' = 'file' and f.body->'file_core'->>'file_name' = 'empty_drops_result.csv';

Definition of done

The user can view the query editor and sample results from the last run of the query side by side.