Add a status menu via SwiftUI MenuBarExtra where to:
- Show/hide app
- Launch on login via "Login Item" target
- Toggle profiles on/off
Only weird that the login item is not added to the list of "Open at
Login", but to "Allow in the Background", see
https://github.com/pilotmoon/Scroll-Reverser/issues/165
Requires some refactoring to bring AppContext initialization to the
AppDelegate.
Fixes#617Fixes#482Fixes#696Fixes#505
Davide