This fixes a panic in the fuzzy finder which someone ran into when
typing in a query that contained the lower-case version of a unicode
character that has more chars than its upper-case version.
It also fixes another problem which was that we didn't find a match if
both candidates and query contained upper-case characters whose
lower-case version had more chars.
Release Notes:
- Fixed a panic in fuzzy-finder that could occur when matching with
queries containing upper-case unicode characters whose lower-case
version has more chars.
Co-authored-by: bennetbo <bennetbo@gmx.de>