RFE: kueue-viz: Display "Position in queue" for workloads

[akram]

What would you like to be added:
The [kueuectl](https://kueue.sigs.k8s.io/docs/reference/kubectl-kueue/commands/kueuectl_list/kueuectl_list_workload/) command has the ability to determine the POSITION IN QUEUE for workloads. It can be useful for user of kueue-viz to have this information.

Why is this needed:
It can be useful for user of kueue-viz to have this information to have an approximation or vision of how long will it take for their workload to be run.

Completion requirements:
This requires to see how the kueuectl list workload works and get how it retrieves the information. If there is a inner API of kueue having the information, it should be used to avoid recoding it.

This enhancement requires the following artifacts:

• Design doc
• API change
• Docs update

The artifacts should be linked in subsequent comments.

[mimowo]

/kind dashboard