Fix profile access on ProfileStore

[GhenadieVP]

Fixed the profile access on Profile store to avoid crashing the app if some parent task was cancelled.

[GhenadieVP]

This implementation would crash the app if parent task was cancelled, as here a force unwrap would be done when a CancellationError is thrown. Instead, profileSubject is transformed to AsyncCurrentValueSubject<Profile?> to be able to access the current profile in non-async context.

[CyonAlexRDX]

btw I wonder if our init should be updated, we do:

	private init() {
		Task {
			for try await state in await ProfileStateChangeEventPublisher.shared.eventStream() {
				if case let .loaded(profile) = state {
					self.profileSubject.send(profile)
				}

				self.profileStateSubject.send(state)
			}
		}
	}

I would think we would wanna do 2 changes:

1. Assign the task to a variable
2. use [weak self] to not have retain cycle

I think 1. is not "needed" because we have a retain cycle, which keeps the Task around,
I think 2. is not "needed" because this is essentially a singleton we need for the duration of the app life time.

[GhenadieVP]

I didn't do this in the first place exactly for the reasons you describe, as we don't gain anything. Storing in variable might be slightly confusing, as one would do that, if they want to potentially cancel the task at some point.

[CyonAlexRDX]

LGTM