Charm details breakout panel is a dispatched view.

* renderUI can open the charmDetails viewlet.
* metadata.charm is used by state to signify if the details should be open.
* the service inspector can be dispatched to without creating a new inspector,
  so details can be viewed without resetting the inspector's state.
Is this just a temporary fix? It seems like we should be destroying the slot instead of just hiding its container.