check if device locale is supported

Author: war-in

package.json

@@ -46,7 +46,7 @@
     "test:debug": "TZ=utc NODE_OPTIONS='--inspect-brk --experimental-vm-modules' jest --runInBand",
     "perf-test": "NODE_OPTIONS=--experimental-vm-modules npx reassure",
     "typecheck": "NODE_OPTIONS=--max_old_space_size=8192 tsc",
-    "lint": "NODE_OPTIONS=--max_old_space_size=8192 eslint . --max-warnings=274 --cache --cache-location=node_modules/.cache/eslint",
+    "lint": "NODE_OPTIONS=--max_old_space_size=8192 eslint . --max-warnings=273 --cache --cache-location=node_modules/.cache/eslint",
     "lint-changed": "NODE_OPTIONS=--max_old_space_size=8192 ./scripts/lintChanged.sh",
     "lint-watch": "npx eslint-watch --watch --changed",
     "shellcheck": "./scripts/shellCheck.sh",

src/components/LocaleContextProvider.tsx

@@ -90,7 +90,9 @@ function LocaleContextProvider({children}: LocaleContextProviderProps) {
         if (nvpPreferredLocale && isSupportedLocale(nvpPreferredLocale)) {
             return nvpPreferredLocale;
         }
-        return getDevicePreferredLocale();
+
+        const deviceLocale = getDevicePreferredLocale();
+        return isSupportedLocale(deviceLocale) ? deviceLocale : CONST.LOCALES.DEFAULT;
     }, [nvpPreferredLocale, nvpPreferredLocaleMetadata]);
 
     useEffect(() => {