Mail: Fix usage of 'as' for variables using firstof

Author: 3j14

gcampus/mail/templates/gcampusmail/access_key_deactivation/base.html

@@ -3,8 +3,8 @@
 {% block content %}
     {% translate "Automatic access key deactivation" as header_text %}
     {% translate "N/A" context "no value provided (water name, comment, etc)" as not_any %}
-    {% firstof course_name not_any asvar name %}
-    {% firstof course_school not_any asvar school %}
+    {% firstof course_name not_any as name %}
+    {% firstof course_school not_any as school %}
     {% url "gcampusauth:course-access-keys" as course_url %}
     {% blocktranslate trimmed asvar content_text with course_url=url name=course_name school=course_school days=days %}
         Some access keys of the course you registered on GewässerCampus

gcampus/mail/templates/gcampusmail/course_deletion/base.html

@@ -3,8 +3,8 @@
 {% block content %}
     {% translate "Your course has been deleted" as header_text %}
     {% translate "N/A" context "no value provided (water name, comment, etc)" as not_any %}
-    {% firstof course_name not_any asvar name %}
-    {% firstof course_school not_any asvar school %}
+    {% firstof course_name not_any as name %}
+    {% firstof course_school not_any as school %}
     {% blocktranslate trimmed asvar content_text with name=course_name school=course_school days=days %}
         The course you registered on GewässerCampus
         (course name: {{ name }}, school: {{ school }}) has been deleted