loginsysteem npm install @react-navigation/native expo install react-native-screens react-native-safe-area-context npm i @react-navigation/material-bottom-tabs npm i @react-navigation/bottom-tabs npm install @react-navigation/material-bottom-tabs react-native-paper react-native-vector-icons npm install @react-navigation/stack expo install react-native-gesture-handler npm install react-native-gesture-handler npm i react-native-vector-icons npm install firebase expo install expo-google-sign-in expo install expo-web-browser expo-auth-session expo-random expo install expo-facebook