remove verbose domain

app/vkk/templates/vkk/users/registration_email.txt

@@ -4,7 +4,7 @@ As you may have gathered from various announcements, the medical faculty is now
 
 You have been identified as a user for DigiTime and an account has been created with this email address. Please use the link below to complete the registration process:
 
-https://vkk.medizin.uni-halle.de{{ signed_url }}
+{{ protocol }}://{{ domain }}/{{ signed_url }}
 
 This means that you no longer have to keep paper timesheets and you can easily record your times in this portal.
 

app/vkk/templates/vkk/users/renew_email.txt

 {% load i18n %}{% blocktranslate with first_name=user.first_name last_name=user.last_name url=url signed_url=signed_url %}Dear {{ first_name }} {{ last_name }},
 
 A registration of an account using this email has been renewed. To complete the registration process, please follow the link bellow:
-https://vkk.medizin.uni-halle.de{{ signed_url }}
+{{ protocol }}://{{ domain }}/{{ signed_url }}
 
 Note: Any previous registration links are now voided.{% endblocktranslate %}
\ No newline at end of file