build: Make docker compose prod and add dev extension

[topher-lo]

Resolves discussion in Discord self-hosted help channel. See thread.

What changed?

• Added new docker-compose.dev.yml file
• Added new multi-stage production next.js Dockerfile
• Prod extension removes all volume bindings
• Prod extension points to production next.js Dockerfile
• Change into a non-privileged user to run the container
• NOTE: fixed a bunch of outstanding frontend linting errors as well

To spin up local prod:
docker compose up

To spin up local dev:
docker compose -f docker-compose.yml -f docker-compose.dev.yml up

Reference: https://docs.docker.com/compose/multiple-compose-files/merge/

Important note

In the future, must remember to graceful error handling for server side components to avoid build next.js prerender errors.

QA

• Ran docker compose up and docker compose -f docker-compose.yml -f docker-compose.dev.yml up
• Manual testing frontend

[topher-lo]

@daryllimyt need assistance regarding linting errors from pnpm build. Please see internal comms.