Dashboard: New EmbeddedDashboard runtime component (#78916)

* Embedding dashboards exploratino

* Update

* Update

* Added e2e test

* Update

* initial state, and onStateChange, only explore panel menu action and other fixes and tests

* fix e2e spec

* Fix url

* fixing test

public/app/app.ts

@@ -33,6 +33,7 @@ import {
   setRunRequest,
   setPluginImportUtils,
   setPluginExtensionGetter,
+  setEmbeddedDashboard,
   setAppEvents,
   type GetPluginExtensions,
 } from '@grafana/runtime';
@@ -72,6 +73,7 @@ import { startMeasure, stopMeasure } from './core/utils/metrics';
 import { initDevFeatures } from './dev';
 import { initAuthConfig } from './features/auth-config';
 import { getTimeSrv } from './features/dashboard/services/TimeSrv';
+import { EmbeddedDashboardLazy } from './features/dashboard-scene/embedding/EmbeddedDashboardLazy';
 import { initGrafanaLive } from './features/live';
 import { PanelDataErrorView } from './features/panel/components/PanelDataErrorView';
 import { PanelRenderer } from './features/panel/components/PanelRenderer';
@@ -134,6 +136,7 @@ export class GrafanaApp {
       setPluginPage(PluginPage);
       setPanelDataErrorView(PanelDataErrorView);
       setLocationSrv(locationService);
+      setEmbeddedDashboard(EmbeddedDashboardLazy);
       setTimeZoneResolver(() => config.bootData.user.timezone);
       initGrafanaLive();