ShishaSubs source request

ShishaSubs

Polish

It has option to choose from hard subs or soft subs. I think it uses vercel index but i don't know.

[X] I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open or closed issue.
[X] I have written a title with source name.
[X] I have checked that the extension does not already exist on the website extensions list or the app.
[X] I have checked that the extension does not already exist by searching the GitHub repository and verified it does not appear in the code base.
[X] I will fill out all of the requested information in this form.

aniyomiorg / aniyomi-extensions