[Metrics][Discover] Reorganize the kbn-unified-metrics-grid package (elastic#248992)

Closes elastic#239886 

## Summary

Summarize your PR. If it involves visual changes include a screenshot or
gif.


### Changes
- Renamed package `kbn-unified-metrics-grid` to
`kbn-unified-chart-section-viewer`
- Renamed `MetricsGridWrapper` to `ChartsGrid`
- Also renamed the corresponding file `metrics_grid_wrapper` to
`charts_grid`
- Moved Metrics Experience component from `components/` to
`components/observability/metrics_experience`
- `metrics_experience_grid.tsx` and `metrics_experience_grid.test.tsx`
- `metrics_experience_grid_content.tsx` and
`metrics_experience_grid_content.test.tsx`
   - `index.tsx`
   - `lazy_unified_metrics_experience_grid.tsx`
   - `metrics_grid.tsx` and `metrics_grid.test.tsx`
- Moved Metrics Experience hooks from `hooks/` to
`components/observability/metrics_experience/hooks`
   - `use_metric_fields.ts` and `use_metric_fields.test.ts `
- `use_metric_fields_filter.ts` and `use_metric_fields_filter.test.ts`
- `use_metrics_grid_fullscreen.ts` and
`use_metrics_grid_fullscreen.test.ts`
   - `use_pagination.ts`
- Added `index.ts` on
`components/observability/metrics_experience/hooks` for exporting
- Moved Metrics Experience context from `context/` to
`components/observability/metrics_experience/context/`
   - `metrics_experience_state_provider/`
   - `metrics_experience_fields_provider/`
- Moved Traces Metrics from `components/traces_metrics_grid/` to
`components/observability/traces/`
- Moved Traces Metrics context from `context/` to
`components/observability/traces/context/`
- Rebuilt (auto) documentation


### Checklist

- [ ] Verify that Kibana builds and runs correctly
- [ ] Verify that there are no CI errors related to this change
- [ ] Verify if the `yarn.lock` file is valid
- [ ] No lint errors `scripts/eslint.js
src/platform/packages/shared/kbn-unified-chart-section-viewer`
- [ ] All tests pass `node scripts/jest
src/platform/packages/shared/kbn-unified-chart-section-viewer`
- [ ] Verify that the component renders and works properly
   - [ ] In Discover, make an ES|QL query such as `TS metrics-*`
   - [ ] In Discover, select a traces data view

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>

Author: jorgeoliveira117

.eslintrc.js

@@ -1140,7 +1140,7 @@ module.exports = {
         'x-pack/solutions/observability/packages/**/!(*.stories.tsx|*.test.tsx|*.storybook_decorator.tsx|*.mock.tsx)',
         'src/platform/plugins/shared/ai_assistant_management/**/!(*.stories.tsx|*.test.tsx|*.storybook_decorator.tsx|*.mock.tsx)',
         'x-pack/platform/plugins/shared/streams_app/**/!(*.stories.tsx|*.test.tsx|*.storybook_decorator.tsx|*.mock.tsx)',
-        'src/platform/packages/shared/kbn-unified-metrics-grid/**/!(*.stories.tsx|*.test.tsx|*.storybook_decorator.tsx|*.mock.tsx)',
+        'src/platform/packages/shared/kbn-unified-chart-section-viewer/**/!(*.stories.tsx|*.test.tsx|*.storybook_decorator.tsx|*.mock.tsx)',
       ],
       rules: {
         '@kbn/i18n/strings_should_be_translated_with_i18n': 'warn',

.github/CODEOWNERS

@@ -630,11 +630,11 @@ src/platform/packages/shared/kbn-try-in-console @elastic/search-kibana
 src/platform/packages/shared/kbn-typed-react-router-config @elastic/obs-presentation-team
 src/platform/packages/shared/kbn-ui-actions-browser @elastic/appex-sharedux
 src/platform/packages/shared/kbn-ui-theme @elastic/kibana-operations
+src/platform/packages/shared/kbn-unified-chart-section-viewer @elastic/obs-exploration-team
 src/platform/packages/shared/kbn-unified-data-table @elastic/kibana-data-discovery @elastic/security-threat-hunting-investigations
 src/platform/packages/shared/kbn-unified-doc-viewer @elastic/kibana-data-discovery
 src/platform/packages/shared/kbn-unified-field-list @elastic/kibana-data-discovery
 src/platform/packages/shared/kbn-unified-histogram @elastic/kibana-data-discovery
-src/platform/packages/shared/kbn-unified-metrics-grid @elastic/obs-exploration-team
 src/platform/packages/shared/kbn-unified-tabs @elastic/kibana-data-discovery
 src/platform/packages/shared/kbn-unsaved-changes-prompt @elastic/kibana-management
 src/platform/packages/shared/kbn-use-tracked-promise @elastic/obs-onboarding-team

.i18nrc.json

@@ -93,7 +93,7 @@
       "src/platform/packages/shared/kbn-management",
       "packages/kbn-management"
     ],
-    "metricsExperience": "src/platform/packages/shared/kbn-unified-metrics-grid/src",
+    "metricsExperience": "src/platform/packages/shared/kbn-unified-chart-section-viewer/src",
     "monaco": "src/platform/packages/shared/kbn-monaco/src",
     "navigation": [
       "src/platform/plugins/shared/navigation",

api_docs/deprecations_by_api.mdx

@@ -113,10 +113,10 @@ tags: ['contributor', 'dev', 'apidocs', 'kibana']
 | <DocLink id="kibKbnLensCommonPluginApi" section="def-common.XYDataLayerConfig.palette" text="palette"/> | lens, @kbn/lens-embeddable-utils | - |
 | <DocLink id="kibNavigationPluginApi" section="def-public.TopNavMenuProps" text="TopNavMenuProps"/> | lens, dashboard, discover | - |
 | <DocLink id="kibSavedObjectsPluginApi" section="def-public.SavedObjectSaveModal" text="SavedObjectSaveModal"/> | presentationUtil, lens, discover | - |
-| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.from" text="from"/> | unifiedDocViewer, lens, @kbn/unified-metrics-grid, apm | - |
-| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.where" text="where"/> | unifiedDocViewer, lens, @kbn/unified-metrics-grid, apm | - |
-| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.stats" text="stats"/> | unifiedDocViewer, lens, @kbn/unified-metrics-grid | - |
-| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.sort" text="sort"/> | unifiedDocViewer, lens, @kbn/unified-metrics-grid | - |
+| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.from" text="from"/> | unifiedDocViewer, lens, @kbn/unified-chart-section-viewer, apm | - |
+| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.where" text="where"/> | unifiedDocViewer, lens, @kbn/unified-chart-section-viewer, apm | - |
+| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.stats" text="stats"/> | unifiedDocViewer, lens, @kbn/unified-chart-section-viewer | - |
+| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.sort" text="sort"/> | unifiedDocViewer, lens, @kbn/unified-chart-section-viewer | - |
 | <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.SortOrder" text="SortOrder"/> | lens | - |
 | <DocLink id="kibKbnLensCommon-2PluginApi" section="def-common.LegacyLensStateApi.getLegacySerializedState" text="getLegacySerializedState"/> | lens, triggersActionsUi | - |
 | <DocLink id="kibManagementPluginApi" section="def-public.ManagementAppMountParams.theme$" text="theme$"/> | triggersActionsUi | - |
@@ -154,11 +154,11 @@ tags: ['contributor', 'dev', 'apidocs', 'kibana']
 | <DocLink id="kibKbnAgentBuilderCommonPluginApi" section="def-common.ConverseInput.attachments" text="attachments"/> | agentBuilder | - |
 | <DocLink id="kibKbnContentManagementTableListViewTablePluginApi" section="def-public.TableListViewTableProps.withoutPageTemplateWrapper" text="withoutPageTemplateWrapper"/> | @kbn/content-management-table-list-view, filesManagement | - |
 | <DocLink id="kibKbnCoreSavedObjectsServerPluginApi" section="def-server.SavedObjectMigrationContext.convertToMultiNamespaceTypeVersion" text="convertToMultiNamespaceTypeVersion"/> | encryptedSavedObjects | - |
-| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.timeseries" text="timeseries"/> | @kbn/unified-metrics-grid, infra | - |
-| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.drop" text="drop"/> | @kbn/unified-metrics-grid | - |
-| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.evaluate" text="evaluate"/> | @kbn/unified-metrics-grid | - |
-| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.keep" text="keep"/> | @kbn/unified-metrics-grid | - |
-| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.replaceParameters" text="replaceParameters"/> | @kbn/unified-metrics-grid | - |
+| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.timeseries" text="timeseries"/> | @kbn/unified-chart-section-viewer, infra | - |
+| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.drop" text="drop"/> | @kbn/unified-chart-section-viewer | - |
+| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.evaluate" text="evaluate"/> | @kbn/unified-chart-section-viewer | - |
+| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.keep" text="keep"/> | @kbn/unified-chart-section-viewer | - |
+| <DocLink id="kibKbnEsqlComposerPluginApi" section="def-common.replaceParameters" text="replaceParameters"/> | @kbn/unified-chart-section-viewer | - |
 | <DocLink id="kibKbnEsqlLanguagePluginApi" section="def-common.ESQLColumn.quoted" text="quoted"/> | @kbn/esql-composer, @kbn/esql-utils | - |
 | <DocLink id="kibKbnPresentationPublishingPluginApi" section="def-public.useBatchedOptionalPublishingSubjects" text="useBatchedOptionalPublishingSubjects"/> | presentationPanel | - |
 | <DocLink id="kibKbnReportingExportTypesPdfCommonPluginApi" section="def-common.JobParamsPDFDeprecated" text="JobParamsPDFDeprecated"/> | @kbn/reporting-export-types-pdf | - |