Update prod Dockerfile with multi-stage Docker build to serve website through nginx

[greninja517]

What type of PR is this? (check all applicable)

• Refactor
• Upgrades
• Documentation Update

Description

This PR enhances the current prod.dockerfile to use multi-stage build and serve the static build using nginx server. The image size was reduced from 957 MB to 107 MB. For serving the website correctly using nginx, a new nginx.conf is also introduced with minimal yet proper functional configuration.

Related Tickets & Documents

• Related Issue #
• Closes #

QA Instructions, Screenshots, Recordings

Docker Image Size:

docker images
REPOSITORY                                                           TAG                    IMAGE ID       CREATED          SIZE
docs-multi-stage                                                     v6                     199dc439783c   36 minutes ago   107MB
docs-single-stage                                                    v1                     eba4e5bb637a   6 hours ago      957MB

Website Demo:

• RUN this command after Image Build:

docker run --rm -p 80:80 docs-multi-stage:v6

• Access the website at http://localhost:80/

UI accessibility checklist

If your PR includes UI changes, please utilize this checklist:

• Semantic HTML implemented?
• Keyboard operability supported?
• Color contrast tested?