OpenDTU console gets spammed with "WifiGeneric::hostByName() error when first trying to resolve the hostname via DNS. So reverse order: first try mDNS, if that fails try DNS. Also ensure that https bool is passed correctly to HTTPClient::begin(). Lastly, concatenate strings for building Digest authorization using "+" and not via snprintf.
Added ability to deal with local host names (mDNS), remove use of FirebasedJson to save ~20kB build size, some changes to PowerLimiter to avoid setting new inverter power limits when not needed (=current limit as reported by inverter is within hysteresis)
