User Search can't find user with unicode top level domain
Neither of these find the user:
- @payphone@zetsubou.xn--q9jyb4c
- @payphone@zetsubou.みんな
- payphone@zetsubou.xn--q9jyb4c
- payphone@zetsubou.みんな
- https://zetsubou.xn--q9jyb4c/payphone
Backend returns errors: {detail: "Internal server error"}
(Moved from pleroma-fe#582 (closed))