refactor(App, navigation): migrate to Expo Router and clean up navigation structure

- Updated App entry point to utilize Expo Router, simplifying the navigation setup.
- Removed legacy navigation components and services to streamline the codebase.
- Adjusted package.json to reflect the new entry point and updated dependencies for compatibility.
- Enhanced overall application structure by consolidating navigation logic and improving maintainability.

src/screens/profile/UserScreen.tsx

@@ -5,16 +5,13 @@
  */
 
 import React from 'react';
-import { useRoute, RouteProp } from '@react-navigation/native';
+import { useLocalSearchParams } from 'expo-router';
 import UserProfileScreen from './UserProfileScreen';
-import { HomeStackParamList } from '../../navigation/types';
 import { useCurrentUser } from '../../stores/authStore';
 
-type UserRouteProp = RouteProp<HomeStackParamList, 'UserProfile'>;
-
 export const UserScreen: React.FC = () => {
-  const route = useRoute<UserRouteProp>();
-  const userId = route.params?.userId || '';
+  const { userId: userIdParam } = useLocalSearchParams<{ userId?: string }>();
+  const userId = userIdParam || '';
   const currentUser = useCurrentUser();
   const isSelfProfile = !!currentUser?.id && currentUser.id === userId;