Increasing Contrast in Main Nav Rollovers

especially improves legibility on yucky monitors
Fix wonky #modx-header on page load

Closes modxcms/revolution#11410
Support Narrower Viewports for top nav

This gets us support for down to about 730px which should be enough for
2.x
Closes modxcms/revolution#11411

added neat so please
cd _build/template/default
bower update
grunt build
Bug Fix

Fixing an issue where blank boxes appeared on desktop viewports
Contrast and Layout Improvements

* origin/pr/11412:
  Bug Fix
  Support Narrower Viewports for top nav
  Fix wonky #modx-header on page load
  Increasing Contrast in Main Nav Rollovers