Add GitHub Pages Deployment for the Project

[Tanya-ruby]

Context

Currently, the project is deployed on Vercel as a demo project, which works well for dynamic hosting. However, to reduce dependency on third-party services, we need to set up deployment to GitHub Pages.

GitHub Pages can serve the project as a static site by exporting the Next.js app as static files.

Note:
There is already a github workflow added ,the task is to configure it for the pages deployment