Set the translations labels (de, es) from the official translator

Set the translations labels (de, es) from the official translator.

• Convert to unicode (for instance in https://r12a.github.io/apps/conversion/)
• Check with special words that may seem odd in Jira world (https://translations.atlassian.com/dashboard/translate?lang=es_ES#/11/0/All Groups/ACCEPTED_TRANSLATIONS/permission)
• Find each line from Xray translation files (raven_es_ES.properties and raven_de_DE.properties)
  • Validate if caps is similar to the previous one
  • change to the translation from official reviewer