sendRegistrationEmailMessage = (locale = '', user = {}) => {
  i18n.setLocale(locale)
  const subject = i18n.__('registration.SUBJECT')
  const htmlMessage = i18n.__(
    'registration.MESSAGE',
    user.name,
    process.env.FRONTEND_URL,
    user.verification
  )
  prepareToSendEmail(user, subject, htmlMessage)
}
Sends registration email
@param {string} locale - locale
@param {Object} user - user object