Add Dockerfile to frontend project

[frle10]

It's common practice nowadays to use containerization for all services we deploy to the web. Since this is a new topic for you, I will route you to Docker's getting started documentation: https://docs.docker.com/get-started/

This section has 10 parts in the sidebar which you should read to start understanding the basics of containerizing an application. Also, this video is a gem: https://www.youtube.com/watch?v=d-PPOS-VsC8&list=PLvjWHH6VW-WJJHRLp9kdpupCi6O9QXn2I&index=31

When you get to know Docker a bit, try to construct a Dockerfile for your frontend application. Also, include a .dockerignore file.