feat(ui): make executions view more compact

[yuri1969]

What changes are being made and why?

During an internal feedback session it was revealed the executions view should be as compact as possible. Reportedly, the top chart pushes the executions listing down form the initial viewport.

Added setting which hides the executions view's stats chart.

Feel free to suggest a better way to handle this requirement (or better naming, etc.) 🙂