LiveLogger broken when NodejsPackage.Instance not initialized

[mousetraps]

See #410 (comment) for more details

[hoanhtien]

VS crashes even if I reverse my commit.

private LiveLogger() {
    //if (NodejsPackage.Instance != null) {
        _diagnosticsOptions = NodejsPackage.Instance.DiagnosticsOptionsPage; // crashes here as NodejsPackage.Instance is null
    //}
}