Fixes NPS var.

rocketchat/manifests/app.yml

@@ -198,9 +198,9 @@ data:
   ADMIN_EMAIL: contact@indiehosters.net
   MONGO_USERNAME: rocketchat
   MONGO_OPLOG_USERNAME: oplog
-  NPS_survey_enabled: "false"
   ROOT_URL: https://${FQDN_DOTS}
   OVERWRITE_SETTING_Update_EnableChecker: 'false'
+  OVERWRITE_SETTING_NPS_survey_enabled: 'false'
   OVERWRITE_SETTING_Show_Setup_Wizard: completed
   OVERWRITE_SETTING_Accounts_AllowDeleteOwnAccount: 'true'
   # Email