[7.x] Advanced Settings management app to kibana platform plugin (#56931)

src/core/public/ui_settings/ui_settings_service.mock.ts

@@ -40,6 +40,7 @@ const createSetupContractMock = () => {
   setupContract.getUpdate$.mockReturnValue(new Rx.Subject<any>());
   setupContract.getSaved$.mockReturnValue(new Rx.Subject<any>());
   setupContract.getUpdateErrors$.mockReturnValue(new Rx.Subject<any>());
+  setupContract.getAll.mockReturnValue({});
 
   return setupContract;
 };

src/legacy/core_plugins/kibana/public/management/index.js

@@ -59,7 +59,7 @@ export function updateLandingPage(version) {
   }
 
   render(
-    <EuiPageContent horizontalPosition="center">
+    <EuiPageContent horizontalPosition="center" data-test-subj="managementHome">
       <I18nContext>
         <div>
           <div className="eui-textCenter">

src/legacy/core_plugins/kibana/public/management/index.scss

@@ -11,5 +11,5 @@
 
 // Core
 @import 'management_app';
-@import 'sections/settings/advanced_settings';
+@import '../../../../../plugins/advanced_settings/public/index';
 @import 'sections/index_patterns/index';

src/legacy/core_plugins/kibana/public/management/sections/index.js

@@ -17,6 +17,5 @@
  * under the License.
  */
 
-import './settings';
 import './objects';
 import './index_patterns';