Adopt the new room list service syncIndicatorListener

ElementX/Sources/Services/Client/ClientProxyProtocol.swift

@@ -19,7 +19,6 @@ import Foundation
 import MatrixRustSDK
 
 enum ClientProxyCallback {
-    case startedUpdating
     case receivedSyncUpdate
     case receivedAuthError(isSoftLogout: Bool)
     case updateRestorationToken
@@ -33,6 +32,11 @@ enum ClientProxyCallback {
     }
 }
 
+enum ClientProxyLoadingState {
+    case loading
+    case notLoading
+}
+
 enum ClientProxyError: Error {
     case failedCreatingRoom
     case failedRetrievingDirectRoom
@@ -67,6 +71,8 @@ struct PusherConfiguration {
 protocol ClientProxyProtocol: AnyObject, MediaLoaderProtocol {
     var callbacks: PassthroughSubject<ClientProxyCallback, Never> { get }
     
+    var loadingStatePublisher: CurrentValuePublisher<ClientProxyLoadingState, Never> { get }
+    
     var userID: String { get }
 
     var deviceID: String? { get }