Bug 23592: Link to the bibliographic record from the suggestion

If there is a link between a suggestion and a bibliographic record (ie.
if suggestion.biblionumber is set), it makes sense to have an hyperlink
on the suggestion detail page.

Test plan:
- Create 2 suggestions
- Create an order from one of them
- Go to the detail page of the suggestion
=> The one with the order has a to the bibliographic record
=> The other one is not linked with a bibliographic record, and so the
title is displayed, without hyperlink

Signed-off-by: Séverine QUEUNE <severine.queune@bulac.fr>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

koha-tmpl/intranet-tmpl/prog/en/modules/suggestion/suggestion.tt

@@ -65,7 +65,11 @@
             [% IF ( title ) %]
                 <li>
                     <span class="label">Title:</span>
+                    [% IF suggestion.biblionumber %]
+                        <a href="/cgi-bin/koha/catalogue/detail.pl?biblionumber=[% suggestion.biblionumber | uri %]">[% suggestion.title | html %]</a>
+                    [% ELSE %]
                         [% title | html %]
+                    [% END %]
                 </li>
             [% END %]
             [% IF ( author ) %]