[FEAT] Show node id on temperature graph tooltip

[FingerlessGlov3s]

Is your feature request related to a problem? Please describe.
When looking at the temperature graph at the bottom of the homepage. When you mouse over a data point to view its temperature there's no way to tell which /dev/sda drive it is.

This is only an issue when you multiple nodes all with their own /dev/sda drive.

Describe the solution you'd like
An extra line of text on the tooltip to display node id if available.

Additional context
No way to know which disk this is.

[AnalogJ]

This should be partially fixed by #22, since the amount of data visible in the UI will be much more reasonable.
However, as you noticed, this will still be an issue for multi-node deployments.

We could add the node label as a prefix to the drive name. Another alternative would be to use the WWN identifier/UUID instead of disk name. Any preference?

[FingerlessGlov3s]

WWN is probably preferred, as this should be unique.

[AnalogJ]

fixed in v0.4.7 🎉