Approval in backend

backend/cs/user.json

@@ -177,6 +177,7 @@
         "agreed_on": "Agreed on",
         "institution_level_contact": "Institution-level contact person",
         "instance_level_contact": "Instance-level contact person",
-        "instance_level_contact_explica": "Enabling this toggle will automatically activate your user profile and make your profile listed as an instance-wide contact person in the navigation."
+        "instance_level_contact_explica": "Enabling this toggle will automatically activate your user profile and make your profile listed as an instance-wide contact person in the navigation.",
+        "invite_date": "Invite date"
     }
 }