feat: Integrate react-router-dom for routing and enhance App component with new navigation structure

frontend/index.html

@@ -16,6 +16,9 @@
   </head>
   <body>
     <div id="root"></div>
+    <script type="module">
+      import '/node_modules/@tabler/core/dist/js/tabler.min.js';
+    </script>
     <script type="module" src="/src/main.jsx"></script>
   </body>
 </html>