* Extended functionalities

* Added different UIs

meal-plan-frontend-angular/src/app/core/guards/auth.guard.ts

@@ -0,0 +1,21 @@
+import { inject } from '@angular/core';
+import { CanActivateFn, Router } from '@angular/router';
+import { AuthService } from '../services/auth.service';
+
+export const authGuard: CanActivateFn = () => {
+  const auth = inject(AuthService);
+  const router = inject(Router);
+  if (auth.isAuthenticated()) {
+    return true;
+  }
+  return router.createUrlTree(['/login']);
+};
+
+export const guestGuard: CanActivateFn = () => {
+  const auth = inject(AuthService);
+  const router = inject(Router);
+  if (!auth.isAuthenticated()) {
+    return true;
+  }
+  return router.createUrlTree(['/']);
+};