Fix russian translation of 'message_view_no_viewer'

  <string name="message_view_show_attachments_action">Вложения</string>

  <string name="message_view_show_more_attachments_action">Показать вложения</string>

  <string name="message_view_fetching_attachment_toast">Извлечение вложений</string>

  <string name="message_view_no_viewer">Отсутствует просмотрщик %s <xliff:g id="mimetype">%s</xliff:g></string>

  <string name="message_view_no_viewer">Отсутствует просмотрщик <xliff:g id="mimetype">%s</xliff:g></string>

  <string name="message_view_download_remainder">Загрузить полностью</string>

  <string name="message_view_downloading">Загрузка…</string>

  <!--NOTE: The following message refers to strings with id account_setup_incoming_save_all_headers_label and account_setup_incoming_title-->