[7.x] [ML] Anomaly Detection alert initialisation from the ML app (#91283)

[kibanamachine]

Backports the following commits to 7.x:

• [ML] Anomaly Detection alert initialisation from the ML app ([ML] Anomaly Detection alert initialisation from the ML app  #91283)

[elasticmachine]

Pinging @elastic/ml-ui (:ml)

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 2bd1e28

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
ml	1742	1737	-5

Async chunks

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

id	before	after	diff
ml	6.4MB	6.3MB	-22.4KB
securitySolution	7.5MB	7.5MB	+24.0B
total			-22.4KB

Page load bundle

Size of the bundles that are downloaded on every page load. Target size is below 100kb

id	before	after	diff
ml	68.2KB	68.1KB	-120.0B

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