[Feature] Add `graph_node` prefix to all metrics

[0xDones]

Description

All metrics listed here don't have a standard prefix, which may make the graph-node metrics collected by Prometheus slightly generic. Adding the application name or "namespace" to all metrics is a good practice.

https://prometheus.io/docs/practices/naming/

Are you aware of any blockers that must be resolved before implementing this feature? If so, which? Link to any relevant GitHub issues.

No response

Some information to help us out

• Tick this box if you plan on implementing this feature yourself.
• I have searched the issue tracker to make sure this issue is not a duplicate.

[github-actions]

Looks like this issue has been open for 6 months with no activity. Is it still relevant? If not, please remember to close it.