Fixing JSON representation of WifiSettings (#91)

* Fixing JSON representation of WifiSettings

Author: hmbacher

lib/framework/WiFiSettingsService.h

@@ -102,11 +102,11 @@ class WiFiSettings
             wifiNetwork["static_ip_config"] = wifi.staticIPConfig;
 
             // extended settings
-            JsonUtils::writeIP(root, "local_ip", wifi.localIP);
-            JsonUtils::writeIP(root, "gateway_ip", wifi.gatewayIP);
-            JsonUtils::writeIP(root, "subnet_mask", wifi.subnetMask);
-            JsonUtils::writeIP(root, "dns_ip_1", wifi.dnsIP1);
-            JsonUtils::writeIP(root, "dns_ip_2", wifi.dnsIP2);
+            JsonUtils::writeIP(wifiNetwork, "local_ip", wifi.localIP);
+            JsonUtils::writeIP(wifiNetwork, "gateway_ip", wifi.gatewayIP);
+            JsonUtils::writeIP(wifiNetwork, "subnet_mask", wifi.subnetMask);
+            JsonUtils::writeIP(wifiNetwork, "dns_ip_1", wifi.dnsIP1);
+            JsonUtils::writeIP(wifiNetwork, "dns_ip_2", wifi.dnsIP2);
         }
 
         ESP_LOGV(SVK_TAG, "WiFi Settings read");