prometheus metrics charts use wrong prometheus-server proxy port

[starudream]

1. follow readme install Prometheus App.

2. click Pods and select a pod.

http://localhost:4466/clusters/local215/api/v1/namespaces/prometheus/pods/prometheus-server-dd484f8d9-2dc2d/proxy/api/v1/query_range?start=1727685466.471&end=1727686066.471&step=2&query=sum%28rate%28container_cpu_usage_seconds_total%7Bcontainer%21%3D%27%27%2Cnamespace%3D%27prometheus%27%2Cpod%3D%27prometheus-server-dd484f8d9-2dc2d%27%7D%5B1m%5D%29%29+by+%28pod%2Cnamespace%29

404 page not found

3. uninstall Prometheus App.

4. reinstall Prometheus App, and edit configmapReload.prometheus.enabled to false.

5. it works

---

maybe headlamp-k8s/plugins prometheus/src/request.tsx#L52 use wrong port 8080 instead of 9090.

[joaquimrocha]

cc @yolossn