* ref(recording): convert recording label to react
- Create a RecordingLabel component for displaying the current
recording state, as reflected in the redux store. This is
needed for 1-on-1 mode to be completely in redux.
- Update the store with the recording state so RecordingLabel
can update itself.
- Remove previous logic for updating the non-react label, which
includes event emitting for filmstrip visibility changes,
as RecordingLabel is hooked into redux updates.
* ref(recording): use status and type constants from lib
* make label really dumb, move logic back to Recording