fix: tabs trigger nextClick event (#1489)

Author: sendya

components/vc-tabs/src/ScrollableTabBarNode.jsx

@@ -260,8 +260,8 @@ export default {
       this.setOffset(offset + navWrapNodeWH);
     },
 
-    nextClick() {
-      // this.__emit('nextClick', e)
+    nextClick(e) {
+      this.__emit('nextClick', e);
       const navWrapNode = this.$props.getRef('navWrap');
       const navWrapNodeWH = this.getOffsetWH(navWrapNode);
       const { offset } = this;