Fixing the issue on the sorting the users using the table headers on the...

... selection modal window.

Joomla Tracker Error:
[#31438] News Feed Manager: News Feed Page. --> Sorting is not working.

Fixing the issue showing tooltip texts on the selection modal window.
Joomla Track Issue:
[#31432] News Feed Manager: News Feed Page. --> System does not displayed the proper tootl tip.