typing non-ascii (korean) in search box (databrowser) is buggy
Describe the bug
when I type 한글 it is typed something like as ㅎㅏㄴㄱ-ㄹ
Dejavu Version Your version of Dejavu and how you're running it: Web, Chrome Extension or as a Docker Image. 3.4.3 running locally
To Reproduce Steps to reproduce the behavior: databrowser
type non ascii character
Expected behavior A clear and concise description of what you expected to happen.
Screenshots

Desktop (please complete the following information):
- OS: [e.g. iOS]
- Browser [e.g. chrome, safari]
- Version [e.g. 22]
Additional context
I tried to track down where the bug is,
thought downshift might be the cause but it doesn't seem to
(I could type 한글 correctly in their sample sandbox https://codesandbox.io/s/simple-downshift-with-getrootprops-example-24s13)

I'd like to try newest reactivesearch with newest downshift and somehow it's hard to do that.. can you help me ?
I made a pull request, although it fails for some reason :(
https://github.com/appbaseio/reactivesearch/pull/1423