[android] Force Cornish language to be used in the app

Signed-off-by: Jean-Baptiste <jeanbaptiste.charron@outlook.fr>

android/app/build.gradle

@@ -254,6 +254,7 @@ android {
   androidResources {
     ignoreAssetsPattern = '!.svn:!.git:!.DS_Store:!*.scc:.*:<dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~'
     noCompress = ['txt', 'bin', 'html', 'png', 'json', 'mwm', 'ttf', 'sdf', 'ui', 'config', 'csv', 'spv', 'obj']
+    // Some languages not supported by Android require to be specified here to be applied
     localeFilters += [
             "af",
             "ar",
@@ -281,6 +282,7 @@ android {
             "in",
             "it",
             "ja",
+            "kw",
             "ko",
             "lt",
             "lv",

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

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <locale-config xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- Some languages not supported by Android require to be specified here to be applied -->
     <locale android:name="en" />
     <locale android:name="af" />
     <locale android:name="ar" />
@@ -26,6 +27,7 @@
     <locale android:name="in" />
     <locale android:name="it" />
     <locale android:name="ja" />
+    <locale android:name="kw" />
     <locale android:name="ko" />
     <locale android:name="lt" />
     <locale android:name="lv" />