Add locales_config (for Android v13)

See:
https://developer.android.com/guide/topics/resources/app-languages#use-localeconfig

Author: Kaljurand

app/src/main/AndroidManifest.xml

@@ -105,6 +105,7 @@
         android:fullBackupContent="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/labelApp"
+        android:localeConfig="@xml/locales_config"
         android:supportsRtl="true"
         android:theme="@style/Theme.K6nele"
         android:usesCleartextTraffic="true">

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

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<locale-config xmlns:android="http://schemas.android.com/apk/res/android">
+   <locale android:name="en-US"/> <!-- English (United States) -->
+   <locale android:name="et"/> <!-- Estonian -->
+</locale-config>