Currently when a playground is run we auto focus the results. This ticket involves adding a setting to our extension settings, that, when true, does not focus the playground results when a playground is run.

We can specify `preserveFocus` as false when we `showTextDocument` the playground results:
https://code.visualstudio.com/api/references/vscode-api#TextDocumentShowOptions 

Github issue: https://github.com/mongodb-js/vscode/issues/222