Soft logout removal (#672)

* Remove isSoftLogout from everywhere except the client delegate
- bump the RustSDK to v1.0.43
- cleanup the app coordinator state machine and login/logout flows

* Merge `succeededSigningIn` and `succeededRestoringSession` into `createdUserSession` in order to simplify the logic

ElementX/Sources/Services/Session/UserSessionProtocol.swift

@@ -21,7 +21,6 @@ enum UserSessionCallback {
     case sessionVerificationNeeded
     case didVerifySession
     case didReceiveAuthError(isSoftLogout: Bool)
-    case updateRestoreTokenNeeded
 }
 
 protocol UserSessionProtocol {
@@ -29,8 +28,6 @@ protocol UserSessionProtocol {
     var userID: String { get }
     var deviceID: String? { get }
     
-    var isSoftLogout: Bool { get }
-    
     var clientProxy: ClientProxyProtocol { get }
     var mediaProvider: MediaProviderProtocol { get }