initial commit

src/App.tsx

@@ -0,0 +1,18 @@
+import { useEffect, useRef, useState } from "react";
+import { GraphRenderer } from "./Graph";
+
+export default function App() {
+  const containerRef = useRef(null);  
+  const firstLevelGraph = new GraphRenderer(containerRef);
+  
+  useEffect(() => {
+      firstLevelGraph.render();      
+      // eslint-disable-next-line react-hooks/exhaustive-deps
+    });
+    
+  return (
+    <div className="flex-1 p-4">
+        <div ref={containerRef} className="w-full h-full bg-white rounded shadow" style={{minHeight: '600px', overflow: 'auto'}}></div>
+    </div>    
+  );
+}