Rewrite the project with Sidebase

Goal
The webpage [Isthisanmlm](https://isthisanmlm.com/) is using an old version nuxt and needs to be updated with [Sidebase](https://github.com/sidestream-tech/sidebase) scaffold. With this issue, we'll rewrite the existing code base using Sidebase.

Tasks
- [x] Rewrite the existing frontend code base using Sidebase
- [x] Rewrite the existing backend code base using Sidebase

