Shorten the line under the header and breadcrumb

1. View line under header and breadcrumb
2. Notice how it is indented on the left, but goes all the way to the edge on the right.

SPEC CHANGE: Please have the right end of the line stop before the edge, equal distance on how it is on the left. This is how it currently look on Production.

Style Guide Updated: http://www.curriki.org/xwiki/bin/view/Project/+Summary