Add hyperlink to article

This is supposed to add an @ after the time for hyperlinking an article buried in "view all articles" in ticket zoom.

References: [IdeaScale](https://otrsteam.ideascale.com/a/dtd/Include-article-URL-inside-show-all-article-view/357362-10369) and [Forum Post](http://forums.otterhub.org/viewtopic.php?t=16493&p=63516)