Add query execution time on the tab

[eiso]

Behaviour: I start a query, and while it's running, I start another query. When the first query finishes, I can't see the execution time it took.

Suggestion: Add query execution time in the query results tab, could be below or above the results table. Asking @ricardobaeta for UX input here.

[ricardobaeta]

@eiso

Thank you for your suggestion! What you propose it's actually an Imperative Action item from the playground user research report. Above the results.

5. RUN Query action feedback messages must be displayed inside results tab.