feat(chat-room): 채팅방에 필요한 기본적인 파일 추가

SodaLive/Sources/Chat/Talk/Room/ChatRoomViewModel.swift

@@ -16,6 +16,7 @@ final class ChatRoomViewModel: ObservableObject {
     @Published var isShowPopup = false
     
     // MARK: - Private
+    private let userRepository = UserRepository()
     private let repository = ChatRoomRepository()
     private var subscription = Set<AnyCancellable>()
 }