configmap-secrets exercise have inconsitencies in service or svc

[sofusalbertsen]

$ tree -L 2
.
├── done
│   ├── backend-deployment.yaml
│   ├── backend-svc.yaml
│   ├── frontend-deployment.yaml
│   ├── frontend-svc.yaml
│   ├── postgres-configmap.yaml
│   ├── postgres-deployment.yaml
│   ├── postgres-secret.yaml
│   └── postgres-service.yaml
└── start
    ├── backend-deployment.yaml
    ├── backend-svc.yaml
    ├── frontend-deployment.yaml
    ├── frontend-svc.yaml
    ├── postgres-deployment.yaml
    └── postgres-service.yaml