[ML] Data Frame Analytics/Anomaly Detection: Custom URLs - entity dropdown reflects Data View update

[alvarezmelissa87]

Summary

Related meta issue: #150375

This PR ensures that when data view is changed, the query entity dropdown values update to reflect the fields for the newly chosen data view. This makes it easier for example to build a link to Discover to view documents in a data view which contains useful contextual data, and has fields of the same name as those used in the job but which was not used to create the job e.g. data views which share a common host.name field.

Checklist

• Unit or functional tests were updated or added to match the most common scenarios

[elasticmachine]

Pinging @elastic/ml-ui (:ml)

[peteharverson]

Tested and LGTM

[walterra]

LGTM, just a note on a potential simplification for the context mock.

[walterra]

We have a mock for this whole file in x-pack/plugins/ml/public/application/contexts/kibana/__mocks__/kibana_context.ts so I wonder if just jest.mock('../../../contexts/kibana'); would work here?

[alvarezmelissa87]

@elasticmachine merge upstream

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: 2d0666a

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
ml	1728	1729	+1

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
ml	3.4MB	3.4MB	+70.0B

Unknown metric groups

ESLint disabled line counts

id	before	after	diff
securitySolution	394	397	+3

Total ESLint disabled count

id	before	after	diff
securitySolution	474	477	+3

History

• 💔 Build #120856 failed 00c5841
• 💔 Build #120483 failed 1134e2c

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

cc @alvarezmelissa87