fix: tabBarGutter not work

* fix: #2083

* fix: #2083

Co-authored-by: baojie <baojie223@qq.com>

Author: baojie223

components/tabs/TabBar.jsx

@@ -18,6 +18,7 @@ const TabBar = {
     renderTabBar: PropTypes.func,
     panels: PropTypes.array.def([]),
     activeKey: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
+    tabBarGutter: PropTypes.number,
   },
   render() {
     const {

components/vc-tabs/src/Tabs.jsx

@@ -43,6 +43,7 @@ export default {
     defaultActiveKey: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
     __propsSymbol__: PropTypes.any,
     direction: PropTypes.string.def('ltr'),
+    tabBarGutter: PropTypes.number,
   },
   data() {
     const props = getOptionProps(this);
@@ -193,6 +194,7 @@ export default {
       renderTabBar,
       destroyInactiveTabPane,
       direction,
+      tabBarGutter,
     } = props;
     const cls = {
       [prefixCls]: 1,
@@ -209,6 +211,7 @@ export default {
         panels: props.children,
         activeKey: this.$data._activeKey,
         direction,
+        tabBarGutter,
       },
       on: {
         keydown: this.onNavKeyDown,