[Unified search] Create unified search plugin

[nlatipov]

Summary

This PR is solves part of Issue: #127243

Motivation:
As a first step we want to move the ui folder of the data plugin to a new plugin, unified_search. No extra functionality is going to be added (or cleanups or improvements). All the applications that are using the SearchBar should be updated to import it from the new plugin.

What was done:

1. new unified_search plugin was created;
2. data/plugin/ui folder was moved into unified_search;
3. The following part was moved from from the Data Plugin runtime contract to UnifiedSearch Plugin

  ui: {
      IndexPatternSelect: jest.fn(),
      SearchBar: jest.fn().mockReturnValue(null),
    },

5. Related Static and Runtime imports were updated
6. Added the unifiedSearch plugin as a dependency to plugins that require plugins (Kibana.json)
7. Registered a unifiedSearch plugin in the i18n (translations) plugin
8. data/plugin/actions/apply_filter_action.ts file was moved into unified_search;

[nlatipov]

@elasticmachine merge upstream

[alexwizp]

@elasticmachine merge upstream

[alexwizp]

@elasticmachine merge upstream

[alexwizp]

@elasticmachine merge upstream

[fkanout]

Actionable Observability changes LGTM.

[peteharverson]

ML changes LGTM (code and tested locally).

[nlatipov]

@elasticmachine merge upstream

[kibanamachine]

expected head sha didn’t match current head ref.

[nlatipov]

@elastic/kibana-design, @elastic/security-onboarding-and-lifecycle-mgt, @elastic/security-solution we need your 👀 here. Please review

[ashokaditya]

plugins/security_solution changes look good. I have a few changes that I'd like to be made.

[nlatipov]

@elasticmachine merge upstream

[ryankeairns]

Moved SCSS files; updated import paths.

[kibana-ci]

💚 Build Succeeded

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• Commit: 72779b5
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Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
data	537	470	-67
unifiedSearch	-	143	+143
total			+76

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
data	2846	2816	-30
triggersActionsUi	288	290	+2
unifiedSearch	-	45	+45
total			+17

Any counts in public APIs

Total count of every any typed public API. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats any for more detailed information.

id	before	after	diff
unifiedSearch	-	1	+1

Async chunks

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

id	before	after	diff
cloudSecurityPosture	369.7KB	369.7KB	+9.0B
data	117.2KB	15.1KB	-102.0KB
dataViewManagement	123.9KB	123.9KB	+41.0B
dataVisualizer	539.6KB	539.7KB	+48.0B
graph	476.8KB	476.8KB	+10.0B
infra	1005.7KB	1005.7KB	+12.0B
inputControlVis	77.6KB	77.6KB	+18.0B
lens	1.1MB	1.1MB	+22.0B
maps	2.5MB	2.5MB	+32.0B
ml	3.3MB	3.3MB	+14.0B
observability	427.1KB	427.1KB	+17.0B
securitySolution	4.9MB	4.9MB	+55.0B
stackAlerts	202.7KB	202.8KB	+88.0B
transform	374.8KB	374.8KB	+1.0B
triggersActionsUi	697.7KB	697.8KB	+35.0B
unifiedSearch	-	138.4KB	+138.4KB
visDefaultEditor	142.4KB	142.4KB	+14.0B
visTypeTimeseries	470.1KB	470.2KB	+15.0B
total			+36.8KB

Public APIs missing exports

Total count of every type that is part of your API that should be exported but is not. This will cause broken links in the API documentation system. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats exports for more detailed information.

id	before	after	diff
data	27	20	-7
unifiedSearch	-	6	+6
total			-1

Page load bundle

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

id	before	after	diff
data	459.6KB	422.3KB	-37.3KB
fleet	110.8KB	110.8KB	+9.0B
graph	7.1KB	7.3KB	+143.0B
infra	88.1KB	88.2KB	+143.0B
lens	30.1KB	30.3KB	+143.0B
maps	69.8KB	70.0KB	+223.0B
ml	39.3KB	39.5KB	+143.0B
navigation	9.3KB	9.4KB	+45.0B
observability	91.2KB	91.4KB	+143.0B
securitySolution	251.5KB	251.6KB	+175.0B
stackAlerts	12.5KB	12.6KB	+143.0B
transform	15.0KB	15.1KB	+143.0B
triggersActionsUi	98.6KB	98.6KB	+30.0B
unifiedSearch	-	41.5KB	+41.5KB
uptime	25.2KB	25.2KB	+9.0B
visDefaultEditor	20.9KB	21.1KB	+143.0B
visTypeTimeseries	16.2KB	16.4KB	+143.0B
total			+5.8KB

Unknown metric groups

API count

id	before	after	diff
data	3459	3426	-33
triggersActionsUi	302	304	+2
unifiedSearch	-	48	+48
total			+17

async chunk count

id	before	after	diff
data	10	2	-8
unifiedSearch	-	10	+10
total			+2

ESLint disabled line counts

id	before	after	diff
data	42	32	-10
unifiedSearch	-	12	+12
total			+2

References to deprecated APIs

id	before	after	diff
data	464	406	-58
unifiedSearch	-	255	+255
total			+197

Total ESLint disabled count

id	before	after	diff
data	46	36	-10
unifiedSearch	-	12	+12
total			+2

Unreferenced deprecated APIs

id	before	after	diff
data	59	56	-3

History

• 💔 Build #35787 failed 4effa45
• 💚 Build #35762 succeeded 37367f3
• 💚 Build #35697 succeeded 1a0eeaa
• 💔 Build #35526 failed 6deb8ae
• 💔 Build #35477 failed d9ff6aa

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

cc @nlatipov

[ashokaditya]

Thanks for the changes @nlatipov