format FS if begin() fail, to avoid setting lost when FS is not mounted

add of timeout parameter

main/User_config.h

@@ -62,6 +62,7 @@
 #define WifiManager_password "your_password" //this is going to be the WPA2-PSK password for the initial setup access point 
 #define WifiManager_ssid "OpenMQTTGateway" //this is the network name of the initial setup access point
 #define WifiManager_ConfigPortalTimeOut 120
+#define WifiManager_TimeOut 5
 
 /*-------------DEFINE YOUR MQTT PARAMETERS BELOW----------------*/
 //MQTT Parameters definition