Currently, it's not possible to change sorting in search results from the default "search relevance".
When searching for a file users sometimes have problems with locating it in long lists of search results, and have no way of improving this situation manually.
To fix that, re-enable sorting in search result lists via the view menu options in case of grid view, and clicking on columns in case of the list view.
Note that it's possible to restore the default "search relevance" order by restarting the search.
Follow up to !577 (closed) and !626 (closed)
Fixes #374 (closed)