session start works

frontend/src/App.tsx

@@ -0,0 +1,24 @@
+import React from 'react';
+import { ThemeProvider, CssBaseline } from '@mui/material';
+import { BrowserRouter as Router, Routes, Route } from 'react-router-dom';
+import theme from './theme';
+import CreateSession from './pages/CreateSession';
+
+import SessionPage from './pages/SessionPage';
+
+function App() {
+  return (
+    <ThemeProvider theme={theme}>
+      <CssBaseline />
+      <Router>
+        <Routes>
+          <Route path="/" element={<CreateSession />} />
+          {/* Other routes will be added here */}
+          <Route path="/session/:sessionId" element={<SessionPage />} />
+        </Routes>
+      </Router>
+    </ThemeProvider>
+  );
+}
+
+export default App;