message: clear wifi strings
diff: @@ -606,6 +606,9 @@ uint8_t WiFiManager::processConfigPortal(){
  return WL_CONNECT_FAILED; // CONNECT FAIL
  }
  else{
  + // clear save strings
  + _ssid = "";
  + _pass = "";
  // if connect fails, turn sta off to stabilize AP
  WiFi_Disconnect();
  WiFi_enableSTA(false);
  