feat(plugin): Mention Plugin

[imdbsd]

No description provided.

[imdbsd]

need to update build proses because it include default render for mention that return a JSX. Consider using webpack.

educational link:
https://www.valentinog.com/blog/webpack/
https://webpack.js.org/guides/typescript/

[imdbsd]

TIL. I didnt neat to setup webpack with babel and ts-loader for fixing build for this package. Enabling "jsx": "react" will let typescript to handle the jsx i use.