Separate the concepts of archived and disconnected devices

Summary:
Minor code cleanup to avoid future confusion:

- archived: a device that was imported from a Flipper trace, and only has persisted state
- (dis)connected: a real stateful device that might or might not have an active connection

Reviewed By: nikoant

Differential Revision: D26275459

fbshipit-source-id: eba554b37c39711e367c3795ff4456329a303c22

desktop/app/src/dispatcher/androidDevice.tsx

@@ -231,7 +231,7 @@ export default (store: Store, logger: Logger) => {
       .getState()
       .connections.devices.filter(
         (device: BaseDevice) =>
-          device.serial === androidDevice.serial && device.isArchived,
+          device.serial === androidDevice.serial && !device.connected.get(),
       )
       .map((device) => device.serial);