Improvement: reset output params when psu disconnects

[austrisv]

as psu shuts off (during night), the output parameters (outputEN, outputvolt) in mqtt and webserver should reset back to 0

Currently it keeps ENabled=1 and last output Voltage value, which, I believe is wrong behaviour as normally you can't even change the outputEN from serial/curl/mqtt

[t413]

This should be fixed now, right? Have you kept seeing the issue?

My issue now is getting it to reliably start up in the morning with the way I've shut it down. Working on it.