DeepSelect: rename to TreeSelect

packages/vant-css/src/index.css

@@ -12,7 +12,6 @@
 @import './badge.css';
 @import './button.css';
 @import './cell.css';
-@import './cell-swipe.css';
 @import './card.css';
 @import './icon.css';
 @import './loading.css';
@@ -42,10 +41,11 @@
 @import './toast.css';
 
 /* high order components */
+@import './cell-swipe.css';
 @import './switch-cell.css';
+@import './tree-select.css';
 
 /* business components */
-@import './deep-select.css';
 @import './goods-action.css';
 @import './notice-bar.css';
 @import './coupon.css';

packages/vant-css/src/tree-select.css

@@ -2,7 +2,7 @@
 @import "./mixins/clearfix.css";
 @import './common/var.css';
 
-.van-deep-select {
+.van-tree-select {
   user-select: none;
   position: relative;
   @mixin clearfix;