fix navigation-bar spec errors

packages/client/src/app/navigation-bar/navigation-bar.spec.tsx

@@ -1,30 +1,27 @@
 import '@testing-library/jest-dom';
 import { screen } from '@testing-library/react';
-import { AuthState } from '../../features/auth/auth.types';
 import { renderWithProviders } from '../../utils/test.utils';
 import { NavigationBar } from './navigation-bar';
+import { RootStore } from '../../core/root.store';
+import { UserDto } from '@tspark/common';
 
 describe('NavigationBar', () => {
   it('should render Login button when user is not logged in', () => {
-    renderWithProviders(<NavigationBar />, {
-      preloadedState: {
-        auth: { isLoggedIn: false } as AuthState,
-      },
-    });
+    const rootStore = new RootStore();
+    rootStore.authStore.isAuthenticated = false;
+
+    renderWithProviders(<NavigationBar />, { rootStore });
 
     expect(screen.queryByTestId('login-btn')).toBeInTheDocument();
     expect(screen.queryByTestId('user-dropdown')).toBeNull();
   });
 
   it('should render user dropdown button when user is logged in', () => {
-    renderWithProviders(<NavigationBar />, {
-      preloadedState: {
-        auth: {
-          isLoggedIn: true,
-          user: { username: 'johnsmith' },
-        } as AuthState,
-      },
-    });
+    const rootStore = new RootStore();
+    rootStore.authStore.isAuthenticated = true;
+    rootStore.authStore.user = { username: 'johnsmith' } as UserDto;
+
+    renderWithProviders(<NavigationBar />, { rootStore });
 
     expect(screen.queryByTestId('login-btn')).toBeNull();
     expect(screen.queryByTestId('user-dropdown')).toBeInTheDocument();