[Text based] Enables save Lens chart to dashboard from Discover

[stratoula]

Summary

Adds a save to dashboard functionality in the Lens charts created in Discover by text based languages.

We allow only saving by value panels and not by reference because we are going to remove this functionality in the next minor (create Lens text based languages SOs).

Checklist

• Any text added follows EUI's writing guidelines, uses sentence case text and includes i18n support
• Unit or functional tests were updated or added to match the most common scenarios
• Any UI touched in this PR is usable by keyboard only (learn more about keyboard accessibility)

[elasticmachine]

Pinging @elastic/kibana-data-discovery (Team:DataDiscovery)

[jughosta]

Could be better to create a variable like canSaveVisualization and use it here and maybe on line 380.

Also, should we check user permissions too?

[stratoula]

Sure we can follow the by value permissions here

[stratoula]

@jughosta done 521b619

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: 521b619

Failed CI Steps

• FTR Configs #14

Test Failures

• [job] [logs] FTR Configs #14 / machine learning - short tests model management trained models for ML power user displays a model with an ingest pipeline and model can be deleted with associated ingest pipelines

Metrics [docs]

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
unifiedHistogram	23	24	+1

Async chunks

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

id	before	after	diff
unifiedHistogram	43.4KB	44.2KB	+788.0B

Unknown metric groups

API count

id	before	after	diff
unifiedHistogram	52	53	+1

ESLint disabled line counts

id	before	after	diff
enterpriseSearch	19	21	+2
securitySolution	414	418	+4
total			+6

Total ESLint disabled count

id	before	after	diff
enterpriseSearch	20	22	+2
securitySolution	498	502	+4
total			+6

History

• 💛 Build #133286 was flaky 0353aab
• 💚 Build #133244 succeeded f712ebf

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

[jughosta]

Nice feature! LGTM 👍