refactor: Make GitHub repo URL configurable via env var

[O2sa]

The components/github-link.tsx file currently hardcodes the repo URL to https://github.com/O2sa/DevImpact. Make the repository URL configurable via an environment variable (e.g., NEXT_PUBLIC_GITHUB_REPO_URL) so forks and deploys can point to different repositories without code changes.

Tasks

• Update components/github-link.tsx to read the repo URL from process.env.NEXT_PUBLIC_GITHUB_REPO_URL with a sensible fallback to the current hardcoded URL.
• Add documentation to .env.example describing the new variable.
• Run the app and verify the link still opens the repo when env var is unset and points to the provided URL when set.

Testing

• Link opens fallback URL when env var is not set.
• Link opens custom URL when env var is set.

Tip

🚀 Want to contribute?
Comment assign me to be automatically assigned to this issue via our GitHub Actions bot. Happy coding! ✨

[ShashwatUpadhayay]

Hello, I am interested to work on this issue..
assign me

[github-actions]

🎉 Issue assigned to @ShashwatUpadhayay! Happy coding!