Optional deactivate uuid from url

[Feilner]

By default a uuid added by url is activated. When the uuid is a group this might me unwanted. The parameter active defines if the uuid is active or not. The default value is not changed. Deactivated when set active to FALSE, F, NO, or 0 (case insensitive) Example: https://demo.volkszaehler.org/?uuid=6836dd20-00d5-11e0-bab1-856ed5f959ae&active=0