Make-so monitor tool's home page shows basic health stats such as % of database PVC's storage space that is used (showing redder the more full it is)

[Venryx]

The monitor tool's home page can be found here: https://github.com/debate-map/app/blob/main/Packages/monitor-client/Source/UI/Home.tsx

The "database PVC" is the "persistent volume claim" in Kubernetes for the database pod. It should be 10gb in size, in both the local and remote clusters.

The monitor tool's frontend can call into the backend (https://github.com/debate-map/app/blob/main/Packages/monitor-backend), which can itself call the exec_command_in_another_pod function here: https://github.com/debate-map/app/blob/dd091e8614ea8b3c496d3a74e8a7f907f2dffc41/Packages/rust-shared/src/utils/_k8s.rs

The pod to run the size-usage command in would be the "debate-map-instance1-XXXX-0" pod.

For the command to run, it should be workable to execute df, and then parse the use% column for the "/dev/sdd" row.