Fix cross-ref hyperlink behavior

frontend/src/components/Panel/Panel.tsx

@@ -35,7 +35,12 @@ function Panel({ language }: PanelProps) {
 
       if (target && targetId) {
         if (target === "article") {
+          // Replace link for easier copying, but navigate in-place to maintain UI state
           link.setAttribute("href", `/${celexId}/articles/${targetId}`);
+          link.onclick = () => {
+            setArticleId(parseInt(targetId));
+            return false;
+          };
         }
       } else {
         console.warn("No target or ID found for link:", link);