Add a project details page

[Sangeeta-20-stack]

Right now, clicking on a project card does not show extended details. We should add a dedicated project details page where users can see more information about each project.

The page can include:

Project title and full description

Tech stack used

Screenshots or preview image

Links (live demo, GitHub repo)

Contributor/author info

Also, add a back button to return to the main projects list. The design should stay consistent with the current site and be responsive for mobile and desktop.

Kindly assign me this issue.