feat: Add NVIDIA GPU monitoring on windows/ linux

[hiro-v]

Problem I want to see my nvidia gpu monitoring (GPU utilization/ VRAM) on Jan to check the resource consumption of models use

Success Criteria

• Correctly show the utilization
• Can see the UI at bottom bar

Additional context

• https://github.com/RedCarrottt/nvmon/blob/master/nvmon-smi-server.js