LPS-30387 [TECH SUPPORT]

Hey Manuel,

this is the test we have talked about. I added a new portlet because I have to change the portlet parameter "preferencesUniqiePerLayout" and I did not want to touch the setUp to change the journal portlet. I also added the pairs of get/update preferences methods to handle group preferences.

Please let me know your opinion!

cc-ing: @epgarcia

thanks,
Daniel