Bug 33293: Use template wrapper for tabs: Holds

Bug 33293: Use template wrapper for tabs: Holds

This patch updates the holds template so that it uses the new WRAPPER
directive to build tabbed navigation.

Note: this patch includes indentation changes, so check the diff
accordingly.

To test, apply the patch and locate a bibliographic record which
can be placed on hold.

- Start the process of placing a hold.
- If you have any patron clubs defined, there should be two tabs:
  Patrons and Clubs. Both should look correct and work correctly.
- If you have no patron clubs you should see only the Patrons tab.

Works as advertised.

Signed-off-by: Paul Derscheid <paul.derscheid@lmscloud.de>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>