Failed to load icons
Hi @atisawd

Great job on the package! I prefer it to fontawesome. 

I'm unfortunately getting an error with two components,

```
https://unpkg.com/boxicons@2.0.7/svg/regular/bx-user-account.svg
[HTTP/2 404 Not Found 36ms]

1

Cannot find "/svg/regular/bx-user-account.svg" in boxicons@2.0.7

https://unpkg.com/boxicons@2.0.7/svg/regular/bx-facebook-circle.svg
[HTTP/2 404 Not Found 35ms]

1

Cannot find "/svg/regular/bx-facebook-circle.svg" in boxicons@2.0.7

```

I installed the package via NPM, and imported it into my app.js for context.

All the other icons I'm using is loading fine.