src/vs/platform/localizations/node/localizations.ts/LocalizationsService/update
class LocalizationsService:	async update(): Promise<boolean> {
		const [current, installed] = await Promise.all([this.cache.getLanguagePacks(), this.extensionManagementService.getInstalled()]);
		const updated = await this.cache.update(installed);
		return !equals(Object.keys(current), Object.keys(updated));
	}