Improve CategorySearch suggestions

**Issue Type:**

Enhancement

**Platform:**

Web

**Description:**

Currently for the top matching categories we only show the user typed input in the suggestions. A better experience would be if we could show the top matching term as a whole instead of only the user typed.

**Screenshots:**

**Minimal reproduction of the problem with instructions:**

In the above image I'm trying to search for 'Harry Potter` but the suggestions with category show only the current input value in suggestions 'harr'.

**Reactivesearch version:** x.y.z

2.6.12