SAK-25778 - render hidden items with less opacity and gray

git-svn-id: https://source.sakaiproject.org/svn/content/branches/SAK-25778@307349 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-25778 support for user myworkspace sites

git-svn-id: https://source.sakaiproject.org/svn/content/branches/SAK-25778@307350 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-25778 change the alert message since we are going to support myworkspace resource navigation

git-svn-id: https://source.sakaiproject.org/svn/content/branches/SAK-25778@307351 66ffb92e-73f9-0310-93c1-f5514f145a0a