chore: use pointer for sidebar button (#915)

ekoeryanto · ulivz · commit bd735fbd564a · 2018-10-09T10:48:20.000-05:00
diff --git a/packages/@vuepress/theme-default/components/SidebarButton.vue b/packages/@vuepress/theme-default/components/SidebarButton.vue
@@ -8,6 +8,7 @@
 
 <style lang="stylus">
 .sidebar-button
+  cursor pointer
   display none
   width 1.25rem
   height 1.25rem
