Recover dropped mysql sys schema
Go to the folder of the github
repo.

Download the sys_schema folder using
gitzip or any other available
extensions. I personally used gitzip. Needless to say you can
download the whole mysql-server repo but that would be inefficient
as you do not need everything and it has a heavy download size.

Extract it to a folder and cd into it

Log in to the mysql client
mysql -u root -p


Import the sys_57.sql file. Don't mind the name, it is compatible
with mysql 8. using
source ./sys_57.sql



There you go, you have your sys schema back. Thanks to danblack for giving me a cue.

P.S akina this is
computer, there is always a way