Bug 34608: (follow-up) Display authorized values if used

Bug 34608: (follow-up) Display authorized values if used

This patch shamelessly steals from Bug 33568 in order to allow the
correct authorized value description to be shown in the JS-generated
table of results for values of borrowers sort1 and sort2.

To test, apply the patch and go to Administration -> Authorized values.

- Add some values, if necessary, to both the 'Bsort1' and 'Bsort2'
  categories.
- Locate some patron records to edit, and set the patron's "Sort 1" and
  "Sort 2" fields.
- Perform a patron search which will return those patron records.
  - Confirm that the correct authorized value description is shown
    instead of the authorized value code.
- Delete all values from the 'Bsort1' and 'Bsort2' authorized value
  categories.
- Return to your patron search and confirm that "Sort 1" and "Sort 2"
  values are still being shown, though now it's the "raw" code.

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>