Fix for jumping trails

When an article is dragged over parts of another article that have their own context (like the boolean states) a request is sent to add the new article at the bottom of the parent group instead of above the article.

There's also some refactoring to split the view/action from the drop/position logic.
Not Finding a Book Should be a Warning
Increase Timeout for Book Lookups
Merge pull request #7290 from guardian/kc-isbn-lookup-warn

Increase Timeout for Book Lookups
Merge pull request #7278 from guardian/facia-tool-jumping

Fix for jumping trails
Clear the search when filtering by filter type

1. Display the filter section/tag in the title
2. When the user clears the section/tag filter, a latest search is triggered
3. Show 'last' instead of next when we are on the last page of a search