refs #18611 [fid_bbi] react on unknown resolver state

themes/fid_bbi/templates/ajax/resolverLinks.phtml

@@ -26,6 +26,10 @@ $links = array_filter($this->electronic ?? [], function ($link) use (&$hrefs) {
     <div class="openurls">
       <ul class="unstyled-list">
         <?php foreach ($links as $link): ?>
+          <?php if ($link['access'] === 'unknown') {
+            continue;
+          }
+          ?>
           <li>
             <?php
             $title = $this->escapeHtml($link['title'] ?? 'unknown');