fix: automatic reconnect when WiFi is lost (#161)

Author: EtlamGit

src/WiFiManager.cpp

@@ -18,6 +18,7 @@ void WifiManager::begin(char const *apName, unsigned long newTimeout)
 
     WiFi.mode(WIFI_STA);
     WiFi.persistent(true);
+    WiFi.setAutoReconnect(true);
 
     //set static IP if entered
     ip = IPAddress(configManager.internal.ip);