Bug 13229 - Suggestion date filters have a style problem

Bug 13229 - Suggestion date filters have a style problem

The suggestion date filters appear to be picking up a style change which
wasn't anticipated for the suggestions page markup. This patch solves
the problem by simplifying and standardizing the markup, including
simplifications to the label structure.

To test, apply the patch and view the suggestions management page in the
staff client. Expand the "suggestion information" filter section and
confirm that the label/input structure looks correct and works
correctly.

Signed-off-by: Blou <philippe.blouin@inlibro.com>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Works as described, looking better.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>