YAML view for Pipelines

[sympatheticmoose]

Because who DOESN'T love YAML?

Initial designs for Pipelines showed two tabs for status and YAML. The latter to help users understand how the Pipeline resource itself is configured. We focussed on Status as was far more important.

Particularly as we get into promotions and the CR containing more information, it would beneficial to provide this view directly - rather than require the user to navigate to the appropriate kustomization that deploys the Pipeline and then view the YAML output from clicking on the pipeline in the details tab.

Acceptance criteria:

• Pipeline details view now has two tabs - Status (default) and YAML
• YAML view mirrors behaviour for other resource details such as on a Canary