chore(首页): 调整回答loading更改时机

src/views/home/components/footer-operation.vue

@@ -162,12 +162,13 @@ function questionSubmit() {
         messageListScrollToBottomThrottle()
       },
       onend: () => {
+        setTimeout(() => {
           emit('updateSpecifyMessageItem', currentLatestMessageItemKeyMap.value.get('assistant')!, {
-          content: messageContent,
             isAnswerLoading: false,
           })
 
           messageListScrollToBottomThrottle()
+        }, 500)
       },
       onclose: () => {
         isAgentResponding.value = false