No Cyrillic folders in Webdav

Describe the bug
When trying to send a file from the integrated webdav server (Nextcloud), directories written in Cyrillic are not displayed at the root, files written in Cyrillic are displayed without problems. I also checked in subdirectories, all folders are displayed there.

What operating system and which version? openSUSE Tumbleweed
Which version of Rocket.Chat (Server)? 4.0.0
Which version of Rocket.Chat.Electron (Electron/Desktop)? 3.5.7
Is there any setting relevant changed? No

To Reproduce

1. Create a folder in the root with a name in Cyrillic, for example Проба
2. Try to send it by clicking the + button and selecting the webdav server
3. A content browsing window will open where this folder will not be visible

Expected behavior
The folder should be rendered

Log

I20211012-20:40:55.369(6) Exception while invoking method getWebdavFilePreview errorClass [Error]: Error, too many requests. Please slow down. You must wait 41 seconds before trying again. [too-many-requests]     at Object.post (app/api/server/v1/misc.js:233:11)     at app/api/server/api.js:406:82     at Meteor.EnvironmentVariable.EVp.withValue (packages/meteor.js:1234:12)     at Object._internalRouteActionHandler [as action] (app/api/server/api.js:406:39)     at Route.share.Route.Route._callEndpoint (packages/nimble_restivus/lib/route.coffee:150:32)     at packages/nimble_restivus/lib/route.coffee:59:33     at packages/simple_json-routes.js:98:9 {   isClientSafe: true,   error: 'too-many-requests',   reason: 'Error, too many requests. Please slow down. You must wait 41 seconds before trying again.',   details: { timeToReset: 40802 },   errorType: 'Meteor.Error' } 
{"level":35,"time":"2021-10-12T14:40:55.370Z","pid":6598,"hostname":"cloud1","name":"API","method":"POST","url":"/api/v1/method.call/getWebdavFilePreview","userId":"64QtuDjKJa5HANkDh","userAgent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.164 Electron/13.2.2 Safari/537.36","length":"187","host":"chat.example.org","referer":"https://chat.example.org/direct/LXAs8ppyWAJQzici9","remoteIP":"IP","status":200,"responseTime":2} 

API_Enable_Rate_Limiter disabled
Send many messages the group the user belongs to is allowed

Start at the getWebdavFilePreview method named in the log and reproduce the issue with a Cyrillic folder at the WebDAV root on Rocket.Chat 4.0.0. Compare root and subdirectory browsing, and check whether the rate-limiter error affects the request. Done means the Cyrillic folder is visible and selectable from the root browsing window.