[Dashboard] Move all dashboard extract/inject into persistable state

[crob611]

Closes #92900

Summary

This moves the dashboard references extract/inject logic into its embeddable factory as part of the Embeddable Persistable State interface and properly names the references so there is no chance of overlap (#92900)

Because there are existing dashboard migrations that run the extract/inject logic server side, I had to introduce the dashboard embeddable server side as well to ensure the same extract/inject logic happens there as well.

Because importing a saved object immediately runs it through the saved object save process, a pre 7.3 dashboard could cause problems, as was previously fixed by #94332. So, we kept the existing "pull out the saved object references" logic as well specifically for the fallback for those older dashboard versions that will fail if run through the persistable state extract/inject.

Testing

Important areas to test around this PR

• Save a dashboard with a by ref panel. Ensure it loads properly. Ensure the saved object of the panel is referenced when viewing the dashboard's relationships
• Save a dashboard with a by value panel. Ensure it loads properly. Ensure any references from that nested by value embeddable are referenced when viewing the dashboard's relationship.
• Ensure an existing 7.12 dashboard loads properly. (not through import since that will go through the saved object save method. We want to make sure an already existing 7.12 dashboard will not need any changes to continue to function properly)
• Ensure an old dashboard (<7.3) is able to be imported properly. That all the appropriate references are there once it's imported. That the dashboard itself loads up and works as expected.

[elasticmachine]

Pinging @elastic/kibana-presentation (Team:Presentation)

[lizozom]

Only code owner review.
Didn't test.

[crob611]

@elasticmachine merge upstream

[crob611]

@elasticmachine merge upstream

[ThomThomson]

From a quick read-through the code all LGTM. Tested the following scenarios locally in Chrome:

• Save a dashboard with a by ref panel. Ensure it loads properly. Ensure the saved object of the panel is referenced when viewing the dashboard's relationships

• Save a dashboard with a by value panel. Ensure it loads properly. Ensure any references from that nested by value embeddable are referenced when viewing the dashboard's relationship.

• Ensure an already existing 7.12 dashboard loads properly and doesn't need any changes to continue to function properly.

• Imported a dashboard from 7.11, and saw that after saving all of the references were updated to the new format

Overall, everything works as expected!

[crob611]

@elasticmachine merge upstream

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 4caf8fc
• Storybooks Preview
• Documentation Changes

Metrics [docs]

Page load bundle

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

id	before	after	diff
dashboard	309.9KB	312.7KB	+2.9KB

History

• 💚 Build #118294 succeeded ad1f70f
• 💔 Build #118272 failed 94540e3
• 💔 Build #118229 failed 870720e
• 💔 Build #118041 failed ccedeb8
• 💔 Build #118002 failed 83a6ae0

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

[kibanamachine]

💚 Backport successful

Status	Branch	Result
✅	7.x

This backport PR will be merged automatically after passing CI.