Use single nginx container for app and docusaurus

[menghif]

Issue This PR Addresses

Fixes #2993

Type of Change

• Bugfix: Change which fixes an issue
• New Feature: Change which adds functionality
• Documentation Update: Change which improves documentation
• UI: Change which improves UI

Description

This PR adds a Dockerfile to share a single nginx container for our web app and docusaurus.

Steps to test the PR

• pnpm i
• pnpm services:start

Checklist

• Quality: This PR builds and passes our npm test and works locally
• Tests: This PR includes thorough tests or an explanation of why it does not
• Screenshots: This PR includes screenshots or GIFs of the changes made or an explanation of why it does not (if applicable)
• Documentation: This PR includes updated/added documentation to user exposed functionality or configuration variables are added/changed or an explanation of why it does not(if applicable)

[gitpod-io]

[manekenpix]

@menghif can you rebase to get the changes in #3376?

[menghif]

Rebased and ready to review. I noticed we now have the following localhost:8000/docs/docs/overview:

I will reconfigure Docusaurus in a followup issue.

[Kevan-Y]

LGTM, great work @menghif.

[manekenpix]

LGTM 👍
@menghif were you planning to apply the changes in this PR to staging and production, or are you going to do it in a different PR?

[menghif]

LGTM 👍 @menghif were you planning to apply the changes in this PR to staging and production, or are you going to do it in a different PR?

In a followup.