Bug 35961: (follow-up) Pass along the borrowernumber

To test:
1. APPLY PATCH
2. Turn on  OpacCatalogConcerns
3. Find a record and go to the OPAC detail page.
4. Click "Report a concern" in the right navigation menu
5. Make sure it works
6. Repeat the proces from MARC view and ISBD view pages

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit e412a4387c)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>

opac/opac-ISBDdetail.pl

@@ -191,6 +191,7 @@ $template->param(
     ReservableItems => $can_holds_be_placed,
     ISBD            => $res,
     biblio          => $biblio,
+    borrowernumber  => $loggedinuser,
 );
 
 #Search for title in links

opac/opac-MARCdetail.pl

@@ -382,6 +382,7 @@ $template->param(
     item_subfield_codes => \@item_subfield_codes,
     biblio              => $biblio,
     norequests          => $norequests,
+    borrowernumber      => $loggedinuser,
 );
 
 output_html_with_http_headers $query, $cookie, $template->output;