What would you like to be added:
Add configuration parameters to kueue-viz backend (listen-port, logs, verbosity, etc...)

Why is this needed:
In the evenutality of grouping frontend and backend containers into the same pod, listen ports should be parametrizable.
Currently they are hardcoded both for frontend and backend to 8080; making it impossible to have frontend and backend in the same pod.

Completion requirements:
Have a parameter --listen=0.0.0.0:8181 to the backend and other startup parameters.

This enhancement requires the following artifacts:

• Design doc
• API change
• Docs update

The artifacts should be linked in subsequent comments.