Ensure bookmarks are visible.
Ensure bookmarks are visible.

As explained in the below linked issue the current CSS is causing
the bookmarks to not be visible in some platforms.  This change
ensures the bookmarks are visible and has been tested as working
on Chrome on Mac OS X.

https://github.com/owncloud/bookmarks/issues/42

owncloud/bookmarks,tflidd/bookmarks,tflidd/bookmarks,owncloud/bookmarks,shtrom/bookmarks,behrisch/bookmarks,alberanid/bookmarks,behrisch/bookmarks,shtrom/bookmarks,alberanid/bookmarks