src/vs/workbench/contrib/welcomeGettingStarted/browser/gettingStarted.ts/GettingStartedPage/markAllStepsComplete
class GettingStartedPage:	private markAllStepsComplete() {
		if (this.currentWalkthrough) {
			this.currentWalkthrough?.steps.forEach(step => {
				if (!step.done) {
					this.gettingStartedService.progressStep(step.id);
				}
			});
			this.hideCategory(this.currentWalkthrough?.id);
			this.scrollPrev();
		} else {
			throw Error('No walkthrough opened');
		}
	}