refactor(request.ts): token 过期错误提示优化

Former-commit-id: 2f91753927484379ee2bd1975c5b642bacd460b0

src/utils/request.ts

@@ -49,9 +49,9 @@ service.interceptors.response.use(
           localStorage.clear();
           window.location.href = '/';
         });
+      } else {
+        ElMessage.error(msg || '系统出错');
       }
-
-      ElMessage.error(msg || '系统出错');
     }
     return Promise.reject(error.message);
   }