WebAPI: Logging enhancements in case of HTTP-status 401...

... when checking for available wallboxes during startup

As response to #217 the integration now logs a possible HTTP-Ststus 401 when searching for possible existing wallboxes during the integration startup as error - since a failing request will mess-up the configuration-process. Best you can do in such a situation is check your credentials (which are probably fine) and just try to restart the integration again.

But the overall problem will remain - App-totals are (IMHO) not reliable - make use of the recently introduced: ChargingPower Sensors and create kWh Sensors via the RiemannSum Integration...

Please consider supporting me

Thanks to those who have already supported me in the past weeks or month that is highly appreciated! To the other users: I am putting quite an amount of energy and passion into this integration. Perhaps you could give yourself a little push (if you can afford it) and become a sponsor.

If you haven't starred this integration in Github yet - please do so - TIA