fix(search): correct file detail page URL in search results

Both the /search page and the inline search in /files were
generating links to /files/{id} which returns 404. The correct
route is /files/{id}/detail.

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

frontend/templates/search.html

@@ -196,7 +196,7 @@
       var tags = Array.isArray(hit.tags) ? hit.tags : (hit.tags ? [hit.tags] : []);
       var docType = hit.document_type || '';
       var sender = hit.sender || hit.absender || '';
-      var fileUrl = '/files/' + hit.file_id;
+      var fileUrl = '/files/' + hit.file_id + '/detail';
 
       // Build badges
       var badges = '';