New OOTB dashboard for kube controller manager

[arapulido]

What does this PR do?

It replaces the OOTB dashboard for the Kube Controller Manager, with the new screenboard type.

Motivation

The OOTB dashboard for kube_controller_manager felt very outdated.

Review checklist (to be filled by reviewers)

• [ ] Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• [ ] PR title must be written as a CHANGELOG entry (see why)
• [ ] Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
• [ ] PR must have changelog/ and integration/ labels attached

[arapulido]

@clamoriniere I have addressed some of your feedback, and asked some questions. Let me know if this looks good or needs more changing. thanks!