I think you should fork it and rewrite the CSS for the dashboard. The markup for the code snippets is just <pre> elements. You could set the white-space to 'pre-line' for those elements to take care of the width issue.
The tool obviously works best with a fairly wide browser window, but patches are more than welcome to improve the CSS, which is obviously kind of primitive. For simple stuff, filing an issue would be great--no need for a full-blown pull request.