Moves layout and styles from ScholarSphere for new user dashboard to Suf...

...ia, moves styles into sufia folder, refactors variable names for CSS, refs #9622

I've abandoned branch SCM-9622 because I just mucked it up. Cleaner commits and request. Implemented refactoring of color variable names per @jcoyne, moved styles to sufia folder and made them partials,  and eliminates some ScholarSphere 2.0 technical debt.