feat: 新增 empty 组件 image 插槽, 完成部分组件的按需加载

package/component/src/theme/index.less

@@ -302,20 +302,16 @@ a cite {
   box-sizing: border-box;
 }
 
-.layui-card-body,
-.layui-card-header,
 .layui-form-label,
 .layui-form-mid,
 .layui-input-block,
 .layui-input-inline,
 .layui-input-wrap,
-.layui-panel,
 .layui-textarea {
   position: relative;
 }
 
-.layui-form-select dl,
-.layui-panel {
+.layui-form-select dl {
   box-shadow: 1px 1px 4px rgb(0 0 0 / 8%);
 }
 
@@ -328,14 +324,6 @@ a cite {
   color: #fff !important;
 }
 
-.layui-panel-window {
-  position: relative;
-  padding: 15px;
-  border-radius: 0;
-  border-top: 5px solid @global-neutral-color-3;
-  background-color: #fff;
-}
-
 .layui-border,
 .layui-border-black,
 .layui-border-blue,