The `afrim-data` should be serve by the server as static file

### Description

Currently, GitHub is used as CDN to access the [`afrm-data`,](https://github.com/fodydev/afrim-data) but there is a rate limiter that can result in bad user experience.

https://github.com/fodydev/lewa-type/blob/45356a11e277858cafbf2b0e1f13d96b65952dfd/app/templates/home.html#L393

### Possible solution

The [`afrim-data`](https://github.com/fodydev/afrim-data) should serve by the server as static files.
We can use git submodule for it, to avoid including [`afrim-data`](https://github.com/fodydev/afrim-data) in the source code.