chore: 同步 #2548 更改

commit 01d0518e86
Author: morning-star <26325820+Sight-wcg@users.noreply.github.com>
Date:   Tue Mar 11 08:40:59 2025 +0800

    Update src/modules/layer.js

src/modules/layer.js

@@ -1029,6 +1029,8 @@ ready.setScrollbar = function(index){
 
 // 恢复页面滚动条
 ready.restScrollbar = function(index) {
+  if(!doms.html.css('overflow')) return;
+  
   // 关闭和大小化, layer-full 处理
   var targetEl = $('.'+ doms[0]).filter(function(){ 
     var layero = $(this);