Fix element ID.

assets/js/hugo_cookie_consent/tracker_code.js

@@ -1,6 +1,6 @@
 (function () {
   function trackVisit() {
-    var banner = document.getElementById('cookie_banner');
+    var banner = document.getElementById('cookie-banner');
     if (!banner) return;
     var matomoUrl = banner.dataset.matomoUrl;
     var siteId = banner.dataset.matomoSiteId;

layouts/_partials/hugo_cookie_consent/scripts.html

@@ -4,3 +4,4 @@
   {{- $js := resources.Get "js/hugo_cookie_consent/tracker_code.js" | minify -}}
   <script src="{{ $js.RelPermalink }}" defer></script>
 {{- end -}}
+