Style active console indicator
Misc interface cleanup + improvements

- Reduce visual clutter by removing unneccesary visual elements.
- Adjust colors (easier on the eyes and easier to scan!)
- Lowercase filters and column headings (hapi! + adds significance to
  uppercase method names).
Fix grouping toggle (on was never firing)
Add JSON display functionality
Add grouping toggle
Merge pull request #58 from alexlande/feature-grouping-design

Feature: Grouping Design (+ visual improvements and JSON display)