Update vscode-nls in notebook and samples, plus fix samples compilation (#4203)

- Upate vscode-nls to 4.0.0 in notebook extension. Should be fix for Insiders build failure due to localization package failing
- Updated samples to remove as vscode-nls if not needed, or update if still needed
- Updated samples using `npm audit fix`
- Fixed compile errors in all the samples

samples/sp_whoIsActive/src/controllers/mainController.ts

@@ -50,4 +50,4 @@ export default class MainController extends ControllerBase {
             });
         });
     }
-}
+}