Notification: X button shows up if progress is collapsed

[bpasero]

When you have a notification with progress that is not having any buttons, we still show the X button.

Action:

class ToggleProgressAction extends Action {

	static readonly ID = 'workbench.action.ProgressAction';
	static readonly LABEL = nls.localize('ProgressAction', "ProgressAction");

	constructor(
		id: string,
		label: string,
		@IProgressService private readonly progressService: IProgressService
	) {
		super(id, label);
	}

	run(): Promise<void> {
		this.progressService.withProgress({
			location: ProgressLocation.Notification,
			title: `Some long running operation`
		}, progress => {
			return timeout(20000);
		});

		return Promise.resolve();
	}
}