standardize Helm Chart with Bitnami Practices

[migmartri]

From bitnami/charts#27100 (comment)

NOTE: It's essential to evaluate and discuss each breaking change we might add to the chart.

### Tasks
- [x] Openshift settings
- [x] hardcoded ports in configmap/secrets
- [x] auto-scaling
- [x] network policies
- [ ] tls.existingSecret? https://github.com/bitnami/charts/pull/27100#discussion_r1705381329
- [x] fix hpa i.e  averageUtilization: {{ .Values.controlplane.autoscaling.hpa.targetMemory }}
- [x] hardcode container names "We usually hardcode a container name, in this case we could use 'controlplane'"