fix right margin on chart getting clipped.

- adjusted the right margin value of the chart config
adjust font color and size of chart control nav items

- as per ui audit doc
fix broken logout dropdown menu
Merge pull request #811 from strongloop/fix/789-metrics-chart-axis-label-chop

fix right margin on chart getting clipped.
Merge pull request #815 from strongloop/fix/metrics-font-audit

adjust font color and size of chart control nav items
Merge pull request #817 from strongloop/fix/816-logout-dropdown-notworking

fix broken logout dropdown menu
ensure active instance is refreshed when editor view reloaded

- added additional request to lazy load the latest active instance