Improve: Workspace config "x" should not be map[string]map[string]string

**Describe your difficulties**
Creating a config with `map[string]map[string]string` is a pain

**Describe your suggestion**
Reduce it to a discrete type ed:

```go
type Command struct {
    Cmd string
    Pwd string
}

type WorkspaceCommand map[string]Command

...
X: WorkspaceCommand
```

**Any specific flow you want to implement/change?**
None

