Bug 18320: Remove calls to CGI->param from the templates in patron cards

Bug 18320: Remove calls to CGI->param from the templates in patron cards

This patch removes calls to CGI->param from within the templates
(patroncards-errors.inc) and passes error_* variables with the same
codes from the controllers to the template instead.

This way we can be sure CGI->param is not called in list context.

To test, try those pages and see they don't show warnings anymore.
Verify that error situations still show the error messages.

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>