update style：菜单管理中图标框的样式

src/page/main/develop/menu/menu-form.vue

@@ -327,6 +327,7 @@ defineExpose({ setForm, menuForm, menuRef });
           display: flex;
           flex-wrap: wrap;
           margin-top: 8px;
+          align-content: flex-start;
           .icon_item {
             display: inline-block;
             border: 1px solid #dadee7;