* Make some managers concurrency-safe
- IntentsManager: @MainActor, non-shared, continuation
- SSIDReader: @MainActor, continuation
- Reviewer: main queue, non-shared
* Review wrong use of Concurrency framework
There were background thread calls e.g. in VPNToggle, because
ProfileManager was used inside a VPNManager async call.
Annotate @MainActor wherever a Task involves UI.
* Make main managers MainActor
* Apply MainActor to Mac menus
* [ci skip] Update CHANGELOG
* Set MainActor consistently on Mac menu view models
