The codepoint is wrong,  and cause all icons display blank
I found the css's content value is different  between the file `dist/game-icons.css` , `test/css/game-icons.css` and the demo web `https://seiyria.com/gameicons-font/css/game-icons.css` , which cause  self-host web will not display icon.

![image](https://user-images.githubusercontent.com/57370/236994499-6e2f35ce-c747-466d-8429-2ea73418b4a2.png)




