src/vs/workbench/browser/workbench.ts/Workbench/createPart
class Workbench:	private createPart(id: string, role: string, classes: string[]): HTMLElement {
		const part = document.createElement(role === 'status' ? 'footer' /* Use footer element for status bar #98376 */ : 'div');
		part.classList.add('part', ...classes);
		part.id = id;
		part.setAttribute('role', role);
		if (role === 'status') {
			part.setAttribute('aria-live', 'off');
		}

		return part;
	}