Signed-off-by: Stephanie Wang swang@cs.berkeley.edu
Various cleanups around docs on Ray cluster "Monitoring and observability". After #27723, we will move these to a common page outside of VMs/k8s subsections:
Add links to the more comprehensive observability section.
Move and clean up cluster-specific content from Prometheus metrics to the new Ray Cluster page. I also modified a bunch of text here because previously we were not very clear about what the recommended approach was.
Include more specific instructions about setting up observability tools for VMs vs k8s.
