feat: 优化了聊天的效果

pages/chat/ChatCardAI.vue

@@ -5,7 +5,8 @@
         <image
           v-if="isLoading"
           class="loading-img"
-          src="/static/msg_loading.svg"
+          src="/static/chat_msg_loading.gif"
+          mode="aspectFit"
         />
         <!-- <loading v-if="isLoading" /> -->
         <ChatMarkdown :key="textKey" :text="processedText" />
@@ -94,8 +95,8 @@ watch(
 }
 
 .loading-img {
-  margin-left: -4px;
-  width: 32px;
-  height: 32px;
+  margin-right: 8px;
+  width: 30px;
+  height: 25px;
 }
 </style>