src/vs/platform/userDataSync/common/ignoredExtensions.ts/IgnoredExtensionsManagementService/hasToNeverSyncExtension
class IgnoredExtensionsManagementService:	hasToNeverSyncExtension(extensionId: string): boolean {
		const configuredIgnoredExtensions = this.getConfiguredIgnoredExtensions();
		return configuredIgnoredExtensions.includes(extensionId.toLowerCase());
	}