Remove k8s components, remove default status indicators
This MR updates the Mermaid chart with a few items:
- Removes the Kubernetes Apps subgraph and components
- Removes the GitLab subgraph
- Sets Minio as a green check for GitLab.com as it has object storage (even if not via Minio)
- Unifies all blocks as square, and removes the dashed boxes which were previously indicating which components defaulted to off
Edited by Joshua Lambert