Fix: solar_passthrough_losses setting persistence (#957)

Due to a typo the value of `solar_passtrough_losses` was lost after a restart.

src/Configuration.cpp

@@ -179,7 +179,7 @@ bool ConfigurationClass::write()
     powerlimiter["enabled"] = config.PowerLimiter.Enabled;
     powerlimiter["verbose_logging"] = config.PowerLimiter.VerboseLogging;
     powerlimiter["solar_passtrough_enabled"] = config.PowerLimiter.SolarPassThroughEnabled;
-    powerlimiter["solar_passtrough_losses"] = config.PowerLimiter.SolarPassThroughLosses;
+    powerlimiter["solar_passthrough_losses"] = config.PowerLimiter.SolarPassThroughLosses;
     powerlimiter["battery_always_use_at_night"] = config.PowerLimiter.BatteryAlwaysUseAtNight;
     powerlimiter["interval"] = config.PowerLimiter.Interval;
     powerlimiter["is_inverter_behind_powermeter"] = config.PowerLimiter.IsInverterBehindPowerMeter;
@@ -438,7 +438,7 @@ bool ConfigurationClass::read()
     config.PowerLimiter.Enabled = powerlimiter["enabled"] | POWERLIMITER_ENABLED;
     config.PowerLimiter.VerboseLogging = powerlimiter["verbose_logging"] | VERBOSE_LOGGING;
     config.PowerLimiter.SolarPassThroughEnabled = powerlimiter["solar_passtrough_enabled"] | POWERLIMITER_SOLAR_PASSTHROUGH_ENABLED;
-    config.PowerLimiter.SolarPassThroughLosses = powerlimiter["solar_passthrough_losses"] | POWERLIMITER_SOLAR_PASSTHROUGH_LOSSES;
+    config.PowerLimiter.SolarPassThroughLosses = powerlimiter["solar_passthrough_losses"] | powerlimiter["solar_passtrough_losses"] | POWERLIMITER_SOLAR_PASSTHROUGH_LOSSES; // solar_passthrough_losses was previously saved as solar_passtrough_losses. Be nice and also try mistyped key.
     config.PowerLimiter.BatteryAlwaysUseAtNight = powerlimiter["battery_always_use_at_night"] | POWERLIMITER_BATTERY_ALWAYS_USE_AT_NIGHT;
     if (powerlimiter["battery_drain_strategy"].as<uint8_t>() == 1) { config.PowerLimiter.BatteryAlwaysUseAtNight = true; } // convert legacy setting
     config.PowerLimiter.Interval =  powerlimiter["interval"] | POWERLIMITER_INTERVAL;