fix: scroll to screenshot, add margin

website/web/static/tree.css

@@ -171,3 +171,7 @@ table td p {
 [data-toggle="collapse"]:not(.collapsed) .if-collapsed {
   display: none;
 }
+
+#screenshot_thumbnail {
+  scroll-margin: 50px;
+}

website/web/templates/tree.html

@@ -89,7 +89,7 @@
   {% else %}
   window.addEventListener('DOMContentLoaded', (event) => {
       let thumbnail = document.getElementById('screenshot_thumbnail');
-      thumbnail.scrollIntoView({behavior: "smooth", block: "center", inline: "center"});
+      thumbnail.scrollIntoView({behavior: "smooth", block: "end", inline: "center"});
   });
   {% endif%}
   </script>