fix(HH-576): normalize realtime message timestamps (#148)

Co-authored-by: Rogee <rogee@ipao.vip>

frontend/app/javascript/dashboard/store/modules/conversations/actions.js

@@ -19,6 +19,7 @@ import {
   handleVoiceCallUpdated,
   syncConversationCallVisibility,
 } from 'dashboard/helper/voice';
+import { isNewerTimestamp } from 'shared/helpers/timeHelper';
 
 export const hasMessageFailedWithExternalError = pendingMessage => {
   // This helper is used to check if the message has failed with an external error.
@@ -41,9 +42,7 @@ const getStoredMessage = (conversation, message) => {
 };
 
 const isNewerMessage = (currentMessage, message) =>
-  !currentMessage?.updated_at ||
-  !message.updated_at ||
-  message.updated_at > currentMessage.updated_at;
+  isNewerTimestamp(currentMessage?.updated_at, message.updated_at);
 
 // actions
 const actions = {