Fix(云灵AI):[#5380]历史记录的回复加载期间无加载状态提示

aiChat/views/history.vue

@@ -45,14 +45,14 @@
               </view>
             </view>
             <view v-if="item.type === -2" class="chat-message-body">
-              <view v-if="item.nodes && item.nodes.length" class="avatar">
+              <view class="avatar">
                 <image
                   :src="webUrl + '/aiChat/avatar.png'"
                   class="chat-avatar"
                   mode="widthFix"
                 />
               </view>
-              <view v-if="item.nodes && item.nodes.length" class="item-left">
+              <view class="item-left">
                 <view class="txt">
                   <view
                     ref="rich-text-box"
@@ -67,7 +67,7 @@
                       space="nbsp"
                     />
                     <view v-if="!(item.nodes && item.nodes.length) && loading" class="loader-wrap">
-                      <div class="loader" />
+                      <div class="loading2" />
                     </view>
                   </view>
                   <view