[ML] Add managed badge for anomaly detection jobs

[peteharverson]

A 'managed' custom setting should be added for anomaly detection jobs to indicate when they have been deployed and managed by elastic and are therefore likely to have important dependencies, such as jobs in the APM transaction, Metrics and Logs anomaly detection modules.

The custom settings inside the job configuration should take the form e.g.

  "custom_settings": {
    "managed": true,
    "created_by": "ml-module-logs-ui-categories",
    "job_revision": 2
  }

To notify users that that a job is 'managed' and that they should avoid changing it, a 'managed' badge should be added next to the job ID in the management page, similar to how it is done for index patterns and transforms.

In addition, we should consider additionally adding in UI warnings "Are you sure?" when deleting, editing, stopping or starting managed jobs.

[elasticmachine]

Pinging @elastic/ml-ui (:ml)

[qn895]

Closing via #122305