nvitop v1.4.1

Fixed

• Fix passing invalid device handle (e.g., GPU is lost) to NVML functions by @XuehaiPan in #146.
• Fix CUDA device selection tool nvisel by @XuehaiPan.

Minor Improvement

• Better Grafana dashboard template:

A Grafana dashboard built on top of nvitop-exporter.

Full Changelog: v1.4.0...v1.4.1