Please add "ms-arab" to the list of language codes supported for monolingual text values. This is for the Malay language written in Jawi (Arabic) script which is a co-official writing in Brunei and is used in Malaysia as well. I see other multiscript languages here also have different codes for different script like Tatar and Sindhi.
Language code: ms-Arab
Language name in ms-Arab: بهاس ملايو
Script used: Arab
Usage: Co-official writing in Brunei and is widely use in Malaysia
Wikidata ID: Q83942
Also I hope this code will be added in Wikidata Lexeme: https://www.wikidata.org/w/index.php?title=Special:WhatLinksHere/Q9237&namespace=146&limit=500