Change links generation on the Worklist Gadget, in order to directly redirect to the worklist URL instead of displaying a collapsing listbox.
This make the gadget more usable.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@39146 20353a03-c40f-0410-a6d1-a30d3c3de9de