Shelly 1PM power status not updated from external control

[mike2194]

Is your feature request related to a problem? Please describe

Shelly 1PM on/off state not updated from external control (eg. hardware switch connected to 1PM or device api).
If 1PM device is known to Moonraker as state "on" user cannot turn on 1PM from KlipperScreen, nor from Mainsail (without turning off, first).

Describe the solution you'd like

Moonraker webhook url for state change callback to be configured via Shelly device website.

Describe alternatives you've considered

status polling of 1PM device could also work, but that might be silly.

curl -s http://192.168.x.x/relay/0 | jq '.ison'

Additional information

No response