Can't search cyrillic letters in /admin/rooms

Description:

Got the message "No data found" when trying to search for rooms, which contain cyrillic letters in names.

Steps to reproduce:

1. open Rooms section in you administration panel, e.g. https://some_rocket_workspace.com/admin/rooms
2. try to search for any channel/room/group, which contains cyrillic (Russian in my case) letters. Example: вопросы-мониторинга

Expected behavior:

Rooms found.

Actual behavior:

No rooms found.
Video demo: https://user-images.githubusercontent.com/2260980/160236080-754ac808-246a-412a-895e-8515553e6cd1.mp4

Server Setup Information:

Version of Rocket.Chat Server: 4.5.2
Operating System: CentOS Linux release 7.9.2009 (Core)
Deployment Method: https://www.vultr.com/es/docs/how-to-install-rocket-chat-on-centos-7/ (yum + src)
Number of Running Instances: 1
DB Replicaset Oplog:
NodeJS Version: v14.0.0
MongoDB Version: 4.4.13 / wiredTiger (oplog Enabled)
Proxy: nginx/1.20.1
Firewalls involved: iptables, ACCEPT ALL

Client Setup Information

Affects both Desktop App and Browser versions.

Additional context

Relevant logs:

Start at the /admin/rooms entry point and reproduce the search with the Cyrillic room name “вопросы-мониторинга.” Trace the room-search flow and compare Cyrillic input with other searches. Done means rooms containing Cyrillic letters are returned in both the browser and desktop app.