Add per-app language preferences

mastodon/src/main/res/xml/locales_config.xml

@@ -0,0 +1,34 @@
+<?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="ar" />
+    <locale android:name="bs" />
+    <locale android:name="ca" />
+    <locale android:name="cs" />
+    <locale android:name="de" />
+    <locale android:name="el" />
+    <locale android:name="es" />
+    <locale android:name="eu" />
+    <locale android:name="fi" />
+    <locale android:name="fr" />
+    <locale android:name="gl" />
+    <locale android:name="hr" />
+    <locale android:name="hy" />
+    <locale android:name="it" />
+    <locale android:name="iw" />
+    <locale android:name="ja" />
+    <locale android:name="kab" />
+    <locale android:name="ko" />
+    <locale android:name="oc" />
+    <locale android:name="pl" />
+    <locale android:name="pt-BR" />
+    <locale android:name="pt-PT" />
+    <locale android:name="ru" />
+    <locale android:name="sv" />
+    <locale android:name="th" />
+    <locale android:name="tr" />
+    <locale android:name="uk" />
+    <locale android:name="vi" />
+    <locale android:name="zh-Hans" />
+    <locale android:name="zh-Hant" />
+</locale-config>