Update app names

app.json name is the fallback. The name users see on the home screen comes from native localization files.

Edit every locale you ship in src/i18n/native/. Example en.json:

{
  "ios": {
    "CFBundleDisplayName": "Your App",
    "NSLocationWhenInUseUsageDescription": "This app uses your location to provide relevant local content.",
    "NSUserTrackingUsageDescription": "This app uses your data to provide relevant content."
  },
  "android": {
    "app_name": "Your App"
  }
}

app.json maps those files under expo.locales. After changing native strings, run npm run prebuild so iOS and Android pick them up.

In-app UI copy (buttons, errors, onboarding) is separate: src/i18n/locales/<code>.json. See Feature flags for adding a language.