Make room proxy unsubscriptions explicit. Fixes problems in which creating and deallocating room proxies would unexpectedly unsubscribe other proxies.

ElementX/Sources/Services/Room/RoomProxy.swift

@@ -51,10 +51,6 @@ class RoomProxy: RoomProxyProtocol {
         room.ownUserId()
     }
 
-    deinit {
-        roomListItem.unsubscribe()
-    }
-
     init(roomListItem: RoomListItemProtocol,
          room: RoomProtocol,
          backgroundTaskService: BackgroundTaskServiceProtocol) async {
@@ -89,6 +85,10 @@ class RoomProxy: RoomProxyProtocol {
         
         subscribeToRoomStateUpdates()
     }
+    
+    func unsubscribeFromUpdates() {
+        roomListItem.unsubscribe()
+    }
 
     lazy var id: String = room.id()
     

ElementX/Sources/Services/Room/RoomProxyProtocol.swift

@@ -69,6 +69,8 @@ protocol RoomProxyProtocol {
     
     func subscribeForUpdates() async
     
+    func unsubscribeFromUpdates()
+    
     func redact(_ eventID: String) async -> Result<Void, RoomProxyError>
     
     func reportContent(_ eventID: String, reason: String?) async -> Result<Void, RoomProxyError>