Update ESPAsync_WiFiManager-Impl.h

See Issue #16

Author: khoih-prog

src/ESPAsync_WiFiManager-Impl.h

@@ -1712,7 +1712,7 @@ void ESPAsync_WiFiManager::handleServerClose(AsyncWebServerRequest *request)
 
   request->send(response);
 
-  //stopConfigPortal = true; //signal ready to shutdown config portal		//KH crash if use this ???
+  stopConfigPortal = true; //signal ready to shutdown config portal
 
   LOGDEBUG(F("Sent server close page"));