Began the process of removing all invalid role attributes starting with the header, login, and notifications components. Updated the corresponding scripts as well.
Made a few structural changes to the header to simply it and then tested it to ensure notification still worked.
Cleaned up resonsive for the rest of the remaining pages: the dash
index, page index, page editor, navigation editor and plugged in a
mobile nav that activates when the viewport gets skinny.
Whew.
