TF-3334 Dispose web socket when close controller

lib/features/push_notification/presentation/websocket/web_socket_queue_handler.dart

@@ -116,6 +116,9 @@ class WebSocketQueueHandler {
   bool isMessageProcessed(String messageId) => _processedMessageIds.contains(messageId);
 
   void dispose() {
+    _messageQueue.clear();
+    _processedMessageIds.clear();
     _queueController.close();
+    _processingLock = null;
   }
 }

lib/features/search/email/presentation/search_email_controller.dart

@@ -1030,6 +1030,7 @@ class SearchEmailController extends BaseController
     _deBouncerTime.cancel();
     emailUIActionWorker.dispose();
     dashBoardActionWorker.dispose();
+    _webSocketQueueHandler?.dispose();
     super.onClose();
   }
 }

lib/features/thread/presentation/thread_controller.dart

@@ -149,6 +149,7 @@ class ThreadController extends BaseController with EmailActionController {
     if (PlatformInfo.isWeb) {
       _resizeBrowserStreamSubscription?.cancel();
     }
+    _webSocketQueueHandler?.dispose();
     super.onClose();
   }