tabs: transform to Component for consistency

app/tabs.js

@@ -1,7 +1,18 @@
 import React from 'react';
 import classes from 'classnames';
 
-export default function ({ data = [], borderColor, active, activeMarkers = [], onChange, onClose }) {
+export default class Tabs extends React.Component {
+
+  render () {
+    const {
+      data = [],
+      borderColor,
+      active,
+      activeMarkers = [],
+      onChange,
+      onClose
+    } = this.props;
+
     return <nav style={{ WebkitAppRegion: 'drag' }}>{
       data.length
         ? 1 === data.length
@@ -32,6 +43,8 @@ export default function ({ data = [], borderColor, active, activeMarkers = [], o
     }</nav>;
   }
 
+}
+
 function onClick (i, onChange, active) {
   if (i !== active) {
     onChange(i);