Bug 26313: (follow-up) Fix OPAC and "Show volumes" links

Bug 26313: (follow-up) Fix OPAC and "Show volumes" links

Elasticsearch requires the booleans in search requests to
be uppercase. This fixes the "Show analytics" link in
OPAC (same as first patch for intranet) and the "Show volume"
link.

To test both patches:

Set UseControlNumber = Use

1) "Show analytics"
- Turn SearchEngine to Elasticsearch and make sure it works
- Pick any serial record in your database, make sure 001 is set
- Go to new > new child record
- Fill in 245 and save
- For both staff and OPAC:
  - Click on the "In" link, it should bring you to the parent record
  - Click on "Show analytics", it should show your analytical record
- Switch to "Zebra" - verify links still work.

2) "Show volumes"
- Turn SearchEngine to Elasticsearch again
- Pick any serial record in your database, make sure 001 is set
- Set LDR, pos. 19 = a - Set
- Note 001 value
- Find another record and edit it
- Set LDR, pos. 19 = a or b, LDR 7 not a or b (m will work)
- Set 773$ title of set record $w 001 of set record
- For both staff and OPAC:
  - Click on the "In: link, it should bring up your set record
  - Click on the "Show volumes" link, it should bring up the volume

- Switch to "Zebra" - verify all links still work.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>