MLSWelcomeEventHandlerImpl
constructor(conversationRepository: ConversationRepository, pendingActionsRepository: PendingActionsRepository, resolvePendingOneOnOnes: () -> Unit, refillKeyPackages: RefillKeyPackagesUseCase, joinExistingMLSConversation: JoinExistingMLSConversationUseCase, fetchConversationIfUnknown: FetchConversationIfUnknownUseCase)