Modernize docker compose usage & language

[neolefty]

I think the old versions of docker-compose have percolated out of dev environments by now, since v2 was released in 2020. See https://docs.docker.com/compose/releases/migrate

• docker-compose –> docker compose
• docker-compose.yml –> compose.yml
• Remove deprecated "version" tag from compose.yml (it is causing warnings in the dev env)

[mjy]

@LocoDelAssembly You mentioned a concern with the change in chat I think?

[LocoDelAssembly]

Missed this one. File rename and removing version seems compatible with the docker version that comes with Ubuntu 22.04 LTS (still supported). However I'd remove the unzip mount point as it is not necessary.

The version number was 2 because I think were using something that was removed in later versions, something related to health checks or detecting when the container is ready, but not currently needed since startup script in app container waits for db to come up before letting TW run.