Dashboard: Empty/No Panels dashboard with a new design (#65161)

* Empty Dashboard state has its own CTA items and its own separate box to choose a library panel to create

* show empty dashboard screen if no panels

* start page for empty dashboard

* add feature flag for empty dashboard redesign

* only show empty dashboard redesign if FF

pkg/services/featuremgmt/registry.go

@@ -320,6 +320,13 @@ var (
 			State:       FeatureStateAlpha,
 			Owner:       grafanaDashboardsSquad,
 		},
+		{
+			Name:         "emptyDashboardPage",
+			Description:  "Enable the redesigned user interface of a dashboard page that includes no panels",
+			State:        FeatureStateAlpha,
+			FrontendOnly: true,
+			Owner:        grafanaDashboardsSquad,
+		},
 		{
 			Name:        "secureSocksDatasourceProxy",
 			Description: "Enable secure socks tunneling for supported core datasources",

pkg/services/featuremgmt/toggles_gen.csv

@@ -47,6 +47,7 @@ nestedFolders,alpha,@grafana/backend-platform,true,false,false,false
 accessTokenExpirationCheck,stable,@grafana/grafana-authnz-team,false,false,false,false
 elasticsearchBackendMigration,alpha,@grafana/observability-logs,false,false,false,false
 datasourceOnboarding,alpha,@grafana/dashboards-squad,false,false,false,false
+emptyDashboardPage,alpha,@grafana/dashboards-squad,false,false,false,true
 secureSocksDatasourceProxy,alpha,@grafana/hosted-grafana-team,false,false,false,false
 authnService,alpha,@grafana/grafana-authnz-team,false,false,false,false
 disablePrometheusExemplarSampling,stable,@grafana/observability-metrics,false,false,false,false

pkg/services/featuremgmt/toggles_gen.go

@@ -199,6 +199,10 @@ const (
 	// Enable data source onboarding page
 	FlagDatasourceOnboarding = "datasourceOnboarding"
 
+	// FlagEmptyDashboardPage
+	// Enable the redesigned user interface of a dashboard page that includes no panels
+	FlagEmptyDashboardPage = "emptyDashboardPage"
+
 	// FlagSecureSocksDatasourceProxy
 	// Enable secure socks tunneling for supported core datasources
 	FlagSecureSocksDatasourceProxy = "secureSocksDatasourceProxy"