Add simple react frontend to manage sessions and add a websocket server

[donin1129]

Hi @chrishubert ,

Thanks for the good work. I don't know if it is some feature you would like to add, but I personally find it nice to have a simple UI help me manging sessions.

In this change, I did the following:

1. Added a react frontend
2. Added a websocket server to allow duplex communication and event driven design
3. Added a few endpoints to help the frontend work properly

[sonarqubecloud[bot]]

Quality Gate failed

Failed conditions
D Reliability Rating on New Code (required ≥ A)

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[donin1129]

Sorry. Just noticed the complaint from sonarcloud. If you want to merge the feature. I can fix those complaints.

[sonarqubecloud[bot]]

Quality Gate failed

Failed conditions
2 Security Hotspots
D Reliability Rating on New Code (required ≥ A)

See analysis details on SonarQube Cloud

Catch issues before they fail your Quality Gate with our IDE extension SonarQube for IDE