feat: prepare example app

Author: jakex7

example/android/app/src/main/AndroidManifest.xml

@@ -8,7 +8,8 @@
       android:icon="@mipmap/ic_launcher"
       android:roundIcon="@mipmap/ic_launcher_round"
       android:allowBackup="false"
-      android:theme="@style/AppTheme">
+      android:theme="@style/AppTheme"
+      android:localeConfig="@xml/locales_config">
       <activity
         android:name=".MainActivity"
         android:label="@string/app_name"

example/android/app/src/main/res/xml/locales_config.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<locale-config xmlns:android="http://schemas.android.com/apk/res/android">
+  <locale android:name="en"/>
+  <locale android:name="pl"/>
+  <locale android:name="fr"/>
+</locale-config>