feat(esp32): Reconnect to the network after connection loss

[alkhachatryan]

Description of Change

Updated the loop function of CameraWebServer example. Currently this software will not try to re-connect to the network if it lost once. There may be a lot of reasons - wifi router lost electricity, some noise in the radio space and much more. Now, the loop function will check for the connection, it is lost - will try to re-connect. Once re-conencted, will run the web server again.

Tests scenarios

I have 6 ESP32 AI Thinker cameras and tested on all of them.

How to test this code

1. Connect the camer to wifi by filling the credentials and uploading to camera
2. Wait until its connected
3. Power off your wifi device
4. Check the serial monitor if camera said that it's trying to reconnect
5. Power on the wifi device
6. Check if camera could reconnect

[github-actions]

	Messages
📖	🎉 Good Job! All checks are passing!

👋 Hello alkhachatryan, we appreciate your contribution to this project!

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[me-no-dev]

the WiFi library can reconnect on it's own. This is not necessary.

[alkhachatryan]

How? It doesn't reconnect on my machines. I have 6 ESP32 cameras and during experiments no one could reconnect