Summary:
If a flipper file is imported, from now on we will show that fact in the sidebar to make it more clear we are looking at an imported device. Beyond that, those devices are marked as `(imported)` rather than `(offline)` to distinguish between offline and imported devices.
This should help with future feature like cross device applicable actions.
Reviewed By: jknoxville
Differential Revision: D18448190
fbshipit-source-id: 560084f010207c99cecd616e43a6cc02e62cbc7a
dcb6595d1d