[BUG] Non-latin search issues

Description:

There is a couple bugs in Admin UI - Rooms search (maybe in some other place too, but now I'm talking about Rooms) with non-Latin search query (Cyrillic in my case).

Steps to reproduce:

1. Enable UTF8 Names Validation on Admin UI - General
2. Enable Allow Special Characters in Room Names on Admin UI - Layout - User Interface
3. Create channel and private room with Cyrillic names, like тестовый канал and тестовый чат
4. Go to Admin UI - Rooms and try to find that room and channel

Expected behavior:

Non-Latin search should work in every search field in Rocket Chat interface

Actual behavior:

UTF8 Names Validation

Allow Special Characters in Room Names

Private room and channel with Cyrillic names

Search attempts


Transliteration search works fine

And a very bad thing - internal transliteration name now not shown in Room Info (it was in 3.1.1 server version)

And another one issue is that Discussion check box have AND logic but not OR logic (as it should be)
Here is an illustrative screenshot

Server Setup Information:

• Version of Rocket.Chat Server: 3.7.1
• Operating System: CentOC7
• Deployment Method: docker
• Number of Running Instances: 12
• DB Replicaset Oplog: Enabled
• NodeJS Version: v12.18.4
• MongoDB Version: 4.0.19

Client Setup Information

• Desktop App or Browser Version: Chrome 85
• Operating System: Windows 10

Additional context

So, in that issue actually 3 bugs:

• Cyrillic search doesn't work in Rooms
• No internal name of room that was in Room Info in previous versions
• Discussions checkbox logic is incorrect (AND instead of proper OR)

@ggazzo and all Front-End team, please take a look at that issue.
Thanks!

Relevant logs:

No logs

Start by reproducing the three reported problems in Admin UI - Rooms: search for Cyrillic-named rooms with the two listed settings enabled, inspect Room Info, and test the Discussions checkbox behavior. Done means non-Latin searches work, the internal room name appears in Room Info, and the checkbox uses the expected OR logic.