Resolve "Examine and fix new nextcloud setup warnings"

Closes #1116 (closed)

templates/nextcloud-onlyoffice-config.yaml

@@ -59,6 +59,7 @@ data:
             },
             "oidc_login_disable_registration": false,
             "oidc_login_webdav_enabled": true,
+            "maintenance_window_start": 1,
             "debug": {{ .Values.nextcloud.debug }}
         },
         "apps":{