Add Typescript Support

[guastallaigor]

Is your feature request related to a problem? Please describe. Add Typescript Support for this project.

Describe the solution you'd like Add all the necessary .ts files to improve Typescript support for Typescript users. Maybe refactor the entire project with Composition API, Vue Demi and Typescript.

Describe alternatives you've considered Just add Typescript support if it's possible in the project right now as it is.

Additional context N/A

[guastallaigor]

ref https://github.com/egoist/vue-dts-gen