fix: artifacts key in object does not have messages property, which g… (#3812)

fix: artifacts key in object does not have messages property, which gives 'Cannot read properties of undefined (reading reverse) error. So, do not add it to obj variable. Instead, add it to msg object.

Author: tom0k1

packages/ui/src/ui-component/dialog/ViewMessagesDialog.jsx

@@ -337,8 +337,8 @@ const ViewMessagesDialog = ({ show, dialogProps, onCancel }) => {
             if (chatmsg.feedback) msg.feedback = chatmsg.feedback?.content
             if (chatmsg.agentReasoning) msg.agentReasoning = chatmsg.agentReasoning
             if (chatmsg.artifacts) {
-                obj.artifacts = chatmsg.artifacts
-                obj.artifacts.forEach((artifact) => {
+                msg.artifacts = chatmsg.artifacts
+                msg.artifacts.forEach((artifact) => {
                     if (artifact.type === 'png' || artifact.type === 'jpeg') {
                         artifact.data = `${baseURL}/api/v1/get-upload-file?chatflowId=${chatmsg.chatflowid}&chatId=${
                             chatmsg.chatId