why it doenst show the sankey diagram? there are a problem with the used library? maybe yu can change to other library.

index.html

@@ -7,6 +7,7 @@
     <link rel="stylesheet" href="style.css">
     <script src="https://cdn.tailwindcss.com"></script>
     <script src="https://cdn.jsdelivr.net/npm/d3@7"></script>
+    <script src="https://cdn.jsdelivr.net/npm/d3-sankey@0.12.3/dist/d3-sankey.min.js"></script>
     <script src="https://unpkg.com/feather-icons"></script>
     <script src="https://cdn.jsdelivr.net/npm/feather-icons/dist/feather.min.js"></script>
 </head>

script.js

@@ -27,14 +27,15 @@ function initDiagram() {
         .nodeWidth(parseInt(document.getElementById('node-width').value))
         .nodePadding(20)
         .extent([[1, 1], [width - 1, height - 6]]);
-
     // Generate the sankey diagram
-    const { nodes, links } = sankey({
-        nodes: sankeyData.nodes.map(d => ({...d})),
-        links: sankeyData.links.map(d => ({...d}))
+    const graph = sankey({
+        nodes: sankeyData.nodes.map(d => Object.assign({}, d)),
+        links: sankeyData.links.map(d => Object.assign({}, d))
     });
-
-    // Clear previous diagram
+    
+    const nodes = graph.nodes;
+    const links = graph.links;
+// Clear previous diagram
     svg.attr("width", width)
        .attr("height", height)
        .attr("viewBox", [0, 0, width, height])