Fix: Wifi.begin was called with wrong parameters

The third parameter should be a optional channel name and not a scan method. There exists a separate method for the scan method.

src/NetworkSettings.cpp

@@ -287,8 +287,7 @@ void NetworkSettingsClass::applyConfig()
         MessageOutput.print("new credentials... ");
         WiFi.begin(
             Configuration.get().WiFi.Ssid,
-            Configuration.get().WiFi.Password,
-            WIFI_ALL_CHANNEL_SCAN);
+            Configuration.get().WiFi.Password);
     } else {
         MessageOutput.print("existing credentials... ");
         WiFi.begin();