fix：增加md样式重写文件

Yi.Ai.Vue3/src/pages/chat/layouts/chatWithId/index.vue

@@ -18,6 +18,7 @@ import { useFilesStore } from '@/stores/modules/files';
 import { useModelStore } from '@/stores/modules/model';
 import { useUserStore } from '@/stores/modules/user';
 import '@/styles/github-markdown.css';
+import '@/styles/yixin-markdown.scss';
 
 type MessageItem = BubbleProps & {
   key: number;

Yi.Ai.Vue3/src/styles/yixin-markdown.scss

@@ -0,0 +1,5 @@
+@use './github-markdown.css';
+//需要重写的样式放这里
+.elx-xmarkdown-container {
+  //color: #0fa958 !important;
+}