fixup! Implement firewall status bar indicator

Update the firewall indicator not only when transitioning to an app but
also when the transition is completed. This matches the latest behavior
of the work profile icon and resolves issues where it would not update.

Issue: calyxos#2671
Issue: calyxos#2672
Change-Id: If53496ee624f43941649e25b598580a380f1aca8