Change behavior of search bar so that it becomes usable by unexperienced users.

[nohahon]

Describe the issue
By default, the Mediawiki search only autocompletes search queries with pages that start with the search string, otherwise it claims that "no match was found", although the actual search finds all pages containing the search string at any position. This behavior is counterintuitive.

This

shouldn't happen.

Either change the way in which search suggestions are created or at least make the "no match was found" disappear.