Added navigation to application, internationalization, and sign in screen.

components/screen-settings/screen-settings.component.jsx

@@ -0,0 +1,15 @@
+import React from "react";
+import { View, Text, SafeAreaView, Button } from "react-native";
+import SignOutButton from "../sign-out-button/sign-out-button.component";
+import { purgeStoredState } from "redux-persist";
+export default function ScreenSettingsComponent() {
+  return (
+    <SafeAreaView>
+      <View>
+        <Text>The settings Screen</Text>
+        <SignOutButton />
+        <Button title="Purge State" onPress={() => purgeStoredState()} />
+      </View>
+    </SafeAreaView>
+  );
+}