add en/vi language

package.json

@@ -16,6 +16,7 @@
     "@gluestack-ui/core": "^3.0.12",
     "@gluestack-ui/utils": "^3.0.11",
     "@hookform/resolvers": "^5.2.2",
+    "@islacel/react-native-custom-switch": "^1.0.10",
     "@legendapp/motion": "^2.5.3",
     "@react-native-async-storage/async-storage": "2.2.0",
     "@react-navigation/bottom-tabs": "^7.4.0",
@@ -32,12 +33,14 @@
     "expo-haptics": "~15.0.7",
     "expo-image": "~3.0.10",
     "expo-linking": "~8.0.8",
+    "expo-localization": "~17.0.7",
     "expo-router": "~6.0.13",
     "expo-splash-screen": "~31.0.10",
     "expo-status-bar": "~3.0.8",
     "expo-symbols": "~1.0.7",
     "expo-system-ui": "~6.0.8",
     "expo-web-browser": "~15.0.8",
+    "i18n-js": "^4.5.1",
     "nativewind": "^4.2.1",
     "react": "19.1.0",
     "react-aria": "^3.44.0",