Add missing kg_text_message_separator

       After <xliff:g id="number">%d</xliff:g> more unsuccessful attempts,

       this user will be removed, which will delete all user data.

    </string>

    <string name="kg_text_message_separator" product="default">" \u2014 "</string>

    <!-- Message shown in dialog when user has exceeded the maximum attempts and the user will be removed. [CHAR LIMIT=none] -->

    <string name="kg_failed_attempts_now_erasing_user" product="tablet">

       You have incorrectly attempted to unlock the tablet <xliff:g id="number">%d</xliff:g> times.