Summary:
When starting Flipper with `--launcher-msg`, it currently shows a red error bar at the bottom. That's not ideal for various reasons including it looking kinda bad and it only supporting a single error (the last one set).
This instead adds an action that shows an indicator next to the version at the top as we had it before with the previous system.
Reviewed By: danielbuechele
Differential Revision: D14778859
fbshipit-source-id: 28591de6262e090a4e59a7f5a8cd86d7b3abf8fe
ad4c2092a5