minor bug fixes to Tag Search Box

[TechCrafterGaming]

There was a bug if you added a tag and then directly afterwards (without selecting another element) wanted to add a tag to a field, the tag was not displayed at first, only when the update_tag function was called once.

and I gave the update_tag function an empty query as default so you don`t have to pass an empty string when you call it.

[Loran425]

Nice tweak for allowing the tags to update in real time rather than having to close the AddTag modal. I like it.