Bug 23253: Fix OpacNavRight for self reg by email

Bug 23253: Fix OpacNavRight for self reg by email

The code expects to display OpacNavRight content at the bottom of the
login form when a user just registered.

Test plan:
- Turn PatronSelfRegistrationVerifyByEmail on
- Register a patron
- Confirm by clicking on the link you received by email (or see the
message_queue table)
=> The OpacNavRight content should be displayed

QA Note: This code smells, the code in the pl should not be needed.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit f9572dd1acd9f39229d8cd864050a536b9c2815d)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>