Fix bug 1101783: Clicking an open position link while pressing [ctrl] sh...

...ouldn't open the position details in the current tab.

https://bugzilla.mozilla.org/show_bug.cgi?id=1101783

- Clicking the *link* will allow the browser to redirect the user by itself, which won't cause the position page to be opened in the current tab.
- Clicking anywhere in the table's row will redirect the user via JavaScript.