AzureMonitor: Update UI to experimental package (#52123)

* feat: make azure experimental the default

* feat: combine metrics query editor rows

fix: linter errors

* chore: remove test loop for DimensionFields test

packages/grafana-data/src/types/featureToggles.gen.ts

@@ -49,7 +49,6 @@ export interface FeatureToggles {
   commandPalette?: boolean;
   cloudWatchDynamicLabels?: boolean;
   datasourceQueryMultiStatus?: boolean;
-  azureMonitorExperimentalUI?: boolean;
   traceToMetrics?: boolean;
   prometheusStreamingJSONParser?: boolean;
   validateDashboardsOnSave?: boolean;