Merged Ombase's changes from frontend branch with main branch. Created sidebar, dashboard, and not found page. Minor changes to landing page.

Frontend/src/App.jsx

@@ -1,19 +1,20 @@
 import "./App.css";
-import DrivethruLandingPage from "./pages/DrivethruLandingPage";
 import { BrowserRouter as Router, Routes, Route } from "react-router-dom";
 import Login from "./pages/Authentication/Login";
 import SignUp from "./pages/Authentication/SignUp";
+import DrivethruLandingPage from "./pages/UserPages/DrivethruLandingPage";
+import Dashboard from "./pages/UserPages/Dashboard";
+import NotFoundPage from "./pages/UserPages/NotFoundPage";
 
 function App() {
   return (
     <Router>
       <Routes>
-        {/* Landing Page at root ("/") */}
         <Route path="/" element={<DrivethruLandingPage />} />
-
-        {/* Login Page at "/login" */}
         <Route path="/login" element={<Login />} />
         <Route path="/signup" element={<SignUp />} />
+        <Route path="/Dashboard" element={<Dashboard />} />
+        <Route path="*" element={<NotFoundPage />} />
       </Routes>
     </Router>
   );