Bug 11802 - corrects for the patron purchase suggestions page

Bug 11802 - corrects for the patron purchase suggestions page

This patch corrects some errors with the staff client's patron purchase
suggestions page (members/purchase-suggestions.pl).

To test, apply the patch and make sure the patronimages system
preference is enabled.

- View the purchase suggestions page for a patron whose record has a
  patron image attached. The image should appear in the left-hand
  sidebar.

- View the page for a patron who has submitted no purchase suggestions.
  The message should be styled correctly.

- The toolbar on the page should look correct and work correctly.

Signed-off-by: Jesse Maseto <jesse@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>