Add `item_detail: false` to the IAs that have `detail: false`

I think it's best to set `item_detail` to `false`, too, since we want to make sure that a detail will never appear when we click on the tiles of these instant answers.
PLOS: Removed trailing comma.
Merge pull request #657 from duckduckgo/jag/bttf/safeguard

Add `item_detail: false` to the IAs that have `detail: false`