Refactor DashboardItemOrder into two separate components ( writable flag )

[NathanVss]

Feature Request

Is your feature request related to a problem or unsupported use case? Please describe. At the moment we have a god component DashboardItemOrder that handles readonly / writable mode via writable flag. But I think this component is starting to get a bit too complex.

Describe the solution you'd like Refactor the component and create two sub components.