RFE: kueue-viz: Display blocking mis-configuration errors so users can unlock their jobs

[akram]

What would you like to be added:
Sometimes, misconfiguration issues are blocking jobs to be processed/admitted. Misconfiguration errors, like referencing a local queue that does not exist.
It could be interesting to have a view or notification or "mailbox like" view that shows the jobs or workloads that cannot be processed by kueue because of missing or incoherent configuration.

Why is this needed:
Sometimes users get stuck without seeing immediately why their workload is not processed. Having such a view will improve user experience.

Completion requirements:
This may require to grab statuses conditions for the different type of objects that participates to the admission of a job and if one in the chain is not satisfied, display it in the mis-configuration view.
That would be also interesting to ensure that statuses and conditions are consistent accros all kueue objects.
example of misconfiguration that can be tracked:

• job targeting non existing local queue
• local queue referencing non existing cluster queue
• no default resource flavour defined

This enhancement requires the following artifacts:

• Design doc
• API change
• Docs update

The artifacts should be linked in subsequent comments.

[mimowo]

/kind dashboard