[data views mgmt] Disable spaces UI in single space mode (#166576)

## Summary

In data views management - checks `hasOnlyDefaultSpace` value and
renders spaces UI if value is false.

Added functional test to verify this is working as expected on
serverless.

Closes: #165804
#165796
#165425

src/plugins/data_view_management/public/components/index_pattern_table/index_pattern_table.tsx

@@ -212,7 +212,7 @@ export const IndexPatternTable = ({
       name: i18n.translate('indexPatternManagement.dataViewTable.nameColumn', {
         defaultMessage: 'Name',
       }),
-      width: '70%',
+      width: spaces ? '70%' : '90%',
       render: (name: string, dataView: IndexPatternTableItem) => (
         <div>
           <EuiLink
@@ -247,7 +247,10 @@ export const IndexPatternTable = ({
       dataType: 'string' as const,
       sortable: ({ sort }: { sort: string }) => sort,
     },
-    {
+  ];
+
+  if (spaces) {
+    columns.push({
       field: 'namespaces',
       name: i18n.translate('indexPatternManagement.dataViewTable.spacesColumn', {
         defaultMessage: 'Spaces',
@@ -270,8 +273,8 @@ export const IndexPatternTable = ({
           <></>
         );
       },
-    },
-  ];
+    });
+  }
 
   if (dataViews.getCanSaveSync()) {
     columns.push(alertColumn);

src/plugins/data_view_management/public/management_app/mount_management_section.tsx

@@ -87,7 +87,7 @@ export async function mountManagementSection(
     fieldFormatEditors: dataViewFieldEditor.fieldFormatEditors,
     IndexPatternEditor: dataViewEditor.IndexPatternEditorComponent,
     fieldFormats,
-    spaces,
+    spaces: spaces?.hasOnlyDefaultSpace ? undefined : spaces,
     theme,
     savedObjectsManagement,
   };

x-pack/test_serverless/functional/test_suites/common/management/data_view_mgmt.ts

@@ -14,15 +14,15 @@ import { FtrProviderContext } from '../../../ftr_provider_context';
 const archivePath = 'test/api_integration/fixtures/es_archiver/index_patterns/basic_index';
 
 export default function ({ getService, getPageObjects }: FtrProviderContext) {
-  const PageObjects = getPageObjects(['settings', 'common', 'header']);
+  const PageObjects = getPageObjects(['settings', 'common', 'header', 'svlCommonPage']);
   const esArchiver = getService('esArchiver');
   const supertest = getService('supertest');
   const testSubjects = getService('testSubjects');
 
-  // FLAKY: https://github.com/elastic/kibana/issues/165804
-  // FLAKY: https://github.com/elastic/kibana/issues/165796
-  // FLAKY: https://github.com/elastic/kibana/issues/165425
-  describe.skip('Data View Management', function () {
+  describe('Data View Management', function () {
+    this.beforeAll(async () => {
+      await PageObjects.svlCommonPage.login();
+    });
     describe('disables scripted fields', function () {
       let dataViewId = '';
 
@@ -100,5 +100,43 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
         await testSubjects.missingOrFail('rollup-tag');
       });
     });
+
+    describe('when in single space mode', function () {
+      let dataViewId = '';
+      before(async () => {
+        await esArchiver.load(
+          'test/api_integration/fixtures/es_archiver/index_patterns/basic_index'
+        );
+
+        const response = await supertest
+          .post(DATA_VIEW_PATH)
+          .set('kbn-xsrf', 'some-xsrf-token')
+          .send({
+            data_view: {
+              title: 'basic_index',
+            },
+            override: true,
+          })
+          .set(ELASTIC_HTTP_VERSION_HEADER, INITIAL_REST_VERSION);
+        dataViewId = response.body.data_view.id;
+      });
+
+      after(async () => {
+        await esArchiver.unload(
+          'test/api_integration/fixtures/es_archiver/index_patterns/basic_index'
+        );
+        await supertest
+          .delete(`${DATA_VIEW_PATH}/${dataViewId}`)
+          .set('kbn-xsrf', 'some-xsrf-token');
+      });
+
+      it('hides spaces UI', async () => {
+        await PageObjects.common.navigateToUrl('management', 'kibana/dataViews', {
+          shouldUseHashForSubUrl: false,
+        });
+        await testSubjects.exists('detail-link-basic_index');
+        await testSubjects.missingOrFail('tableHeaderCell_namespaces_1');
+      });
+    });
   });
 }