[8.x][Index management] Project level retention support (#193715)

[ElenaStoeva]

Backport

This will backport the following commits from main to 8.x:

• [Index management] Project level retention support #193715

Note: Created the backport manually because of merge conflicts in config/serverless.security.yml

[elasticmachine]

Pinging @elastic/kibana-management (Team:Kibana Management)

[kc13greiner]

Backport LGTM!

[elasticmachine]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: c062d07

Failed CI Steps

• x-pack/test/cases_api_integration/security_and_spaces/config_trial.ts

Test Failures

• [job] [logs] x-pack/test/cases_api_integration/security_and_spaces/config_trial.ts / cases security and spaces enabled: trial Common migrations migrations 7.13.2 "before all" hook for "adds the owner field"

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
indexManagement	692	693	+1

Public APIs missing comments

Total count of every public API that lacks a comment. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats comments for more detailed information.

id	before	after	diff
indexManagement	246	247	+1

Async chunks

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

id	before	after	diff
indexManagement	684.9KB	687.8KB	+2.9KB

Page load bundle

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

id	before	after	diff
indexManagement	45.5KB	45.6KB	+81.0B

Unknown metric groups

API count

id	before	after	diff
indexManagement	251	252	+1

cc @ElenaStoeva