Dedicated yaml tab for Trials

[elenzio9]

/kind feature

Describe the solution you'd like
Our goal is to create a new yaml tab that will show the full YAML as it comes from the backend using the new Editor component introduced in kubeflow/kubeflow#6733.

Related issue: #1763

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[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[andreyvelich]

This has been implemented. Thank you for the contribution!