src/vs/workbench/contrib/welcomeWalkthrough/browser/walkThroughPart.ts/WalkThroughPart/dispose
class WalkThroughPart:	override dispose(): void {
		this.editorFocus.reset();
		this.contentDisposables = dispose(this.contentDisposables);
		this.disposables.dispose();
		super.dispose();
	}