Docker file is added

[shraddha761]

Description

the first stage uses a Node.js base image to build the application. It copies the project files, installs dependencies using npm ci, and builds the application using npm run build. The second stage uses a lightweight Nginx base image, nginx:alpine, and copies the built application from the previous stage into the Nginx's default HTML directory. It exposes port 80 and sets the command to start Nginx.

Fixes #331

Screenshots

Checklist

• [x] Tests have been added or updated to cover the changes
• [x] Documentation has been updated to reflect the changes
• [x] Code follows the established coding style guidelines
• [x] All tests are passing

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[shraddha761]

@swapnilsparsh please review