[SUGGESTION] uft8 string conversion (lowercase / uppercase)

Hello, mates! It’s been a long time i’ve offline. But this is not about it.

Can you please add utf8 strings conversion to uppercase, like in MTA (utf8.upper / utf8.lower)?
To be precise, it’s need for cyrillic letters to convert in upper-/lower- case

Thank you in advance!

No, this is not a modding discussion!
I can write cyrillic conversion to upper/lower case by myself, but it’s will be good as native function both client and server side in fivem development plane.
text:utf8upper() similar to text:uppercase() for latin letters.