Bug 31527: Breadcrumbs for anonymous suggestions are not correct

Bug 31527: Breadcrumbs for anonymous suggestions are not correct

This patch updates the OPAC suggestions template in order to
omit the patron name breadcrumb if there is not a logged-in
user.

To test, apply the patch and view the OPAC suggestions page
with the AnonSuggestions preference both enabled and disabled.

- If you are logged in, the page breadcrumbs will be:
  Home -> [Your name] -> Purchase suggestions.
- If you are not logged in it should be:
  Home -> Purchase suggestions

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>