[app-platform] 修复应用对话内容大于小于号展示问题 (#374)

Co-authored-by: 陈潇文 <chenxiaowen17@huawei.com>

Author: Msquittto

frontend/src/pages/chatPreview/utils/marked-process.ts

@@ -17,6 +17,9 @@ export const markedProcess = (content) => {
       tool: [],
       step: []
     },
+    escapeHtml: (html: string) => {
+      return html;
+    },
   };
   const clean = xss(content, config);
   return marked(clean, {
@@ -27,4 +30,4 @@ export const markedProcess = (content) => {
       }
     }
   })
-};
+};