Add "cursor: move" to the draggable items and "cursor: pointer" to the selectable items

From [a HN comment](https://news.ycombinator.com/item?id=6202169):

<blockquote>
Please add "cursor: default;" or "cursor: move;" to the draggable items. Draggable things should not use the text selection cursor. :)
</blockquote>

This corrects [a previous pull request ](https://github.com/xta/HalloweenBash/pull/12) where I forgot to put ```cursor: pointer``` for the non-draggable list items.