Start/Stop charge is checkable if we are NOT disconnected

main.go

@@ -300,9 +300,8 @@ func setValues() {
 	tempSetting.SetReadOnly(false)
 
 	startStopCharge.SetChecked(chargeStats.ChargingState == "Charging")
-	if chargeStats.ChargingState == "Disconnected" {
-		startStopCharge.SetCheckable(false)
-	}
+
+	startStopCharge.SetCheckable(chargeStats.ChargingState != "Disconnected")
 
 }