[Panlingual] Add a description for per app language.

- This is to notify some app may not support to user.

Bug: 228415129
Test: local
Change-Id: I6205e0b5fdb3ee42a22ae4995c99e9d8dc5e0a2d

res/layout/app_locale_details_description.xml

@@ -19,7 +19,7 @@
     android:layout_height="wrap_content"
     android:gravity="center_horizontal" >
     <TextView
-        android:id="@id/description"
+        android:id="@+id/description"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginLeft="15dip"