Change Azure region dropdown to use azurecore API (#11131)

* Change Azure region dropdown to use azurecore API for getting display name

* Fix compile errors

* Adding a few things to the vscodeignore

* and another

extensions/resource-deployment/src/ui/deployClusterWizard/pages/targetClusterPage.ts

@@ -51,7 +51,7 @@ export class TargetClusterContextPage extends WizardPageBase<DeployClusterWizard
 		});
 	}
 
-	public onEnter() {
+	public async onEnter(): Promise<void> {
 		if (this.loadDefaultKubeConfigFile) {
 			let defaultKubeConfigPath = this.wizard.kubeService.getDefaultConfigPath();
 			this.loadClusterContexts(defaultKubeConfigPath);