translate wpm ajax requests

translate.php

<?php
add_action( 'plugins_loaded', function() {
  global $sitepress;
  if( ! isset( $_REQUEST['icl_ajx_action'] ) && isset( $_POST[ 'mylang' ] ) ) {
    $reflection = new ReflectionClass( 'SitePress' );
    $admin_language = $reflection->getProperty( 'admin_language' );
    $admin_language->setAccessible( true );
    $admin_language->setValue( $sitepress, $_POST[ 'mylang' ] );
  }
} );