!95 修复 layer icon 不显示问题

Merge pull request !95 from F4NNIU/fix-layer-icon

.gitignore

@@ -13,3 +13,4 @@ composer.lock
 *.css.map
 !.gitkeep
 .env
+.vscode

public/assets/css/backend.css

@@ -855,7 +855,7 @@ table.table-nowrap thead > tr > th {
 }
 .layui-layer-fast .layui-layer-setwin .layui-layer-close2,
 .layui-layer-fast .layui-layer-setwin .layui-layer-close2:hover {
-  background: url('../libs/layer/dist/theme/default/icon.png') no-repeat -149px -31px !important;
+  background: url('../libs/fastadmin-layer/dist/theme/default/icon.png') no-repeat -149px -31px !important;
   top: -30px;
   right: -30px;
 }