l10n Occitan language: mailer update (#6193)

l10n Occitan language: mailer update (#6193)

* Create email_changed.oc.html.erb

* Create email_changed.oc.text.erb

* Update email_changed.oc.html.erb

* Update email_changed.oc.html.erb

* Create reconfirmation_instructions.oc.html.erb

* Create reconfirmation_instructions.oc.text.erb

* Update confirmation_instructions.oc.html.erb

* Update confirmation_instructions.oc.text.erb

* Update confirmation_instructions.oc.html.erb

* Update reconfirmation_instructions.oc.html.erb

* Update reconfirmation_instructions.oc.text.erb

* Update reconfirmation_instructions.oc.html.erb