Hidden tags update

We updated a small behavior with the new Hide tags from readers option for tags. We noticed that on some occasions, when search results or blog style categories' articles had a mixture of public and hidden tags, when an article only had internal tags, sometimes the "Tags: " label would still show up with no tags listed after it.

We've fixed this so that the Tags label is only shown in search results and blog categories when there are tags there that readers can see.