Update sidebar header colors
Remove unused less
Add picture and new styles to details view
New sidebar header styles

Makes typeahead search results visible.
Makes header animations smoother.
Add styles for typeahead suggestions

Unfortunately still contains some magic numbers in the
typeahead suggestion less to make the width and position match
that of the search header. Hopefully these can be fixed when there
is more time for refactoring.
Fix URL for autocomplete to avoid a redirect