chore(i18n): Update spanish translation
chore(i18n): Update spanish translation

Subsaned a few bad translated definitions. Applied consistency in various terms. Modified all the terms to watch the spanish cortesy treatment ("usted" vs "tu")
pennersr/django-allauth,rsalmaso/django-allauth,rsalmaso/django-allauth,rsalmaso/django-allauth,pennersr/django-allauth,pennersr/django-allauth