Pre-built docker image for ALAS

[n0k0m3]

Is your feature request related to a problem?

Improving upon #1238, building a ready-to-use docker image hosted on ghcr.io/dockerhub will be very much beneficial as users don't need to build images.

Pros:

• Users don't need to build image
• [Squashing image}(https://github.com/actions/runner/issues/533) will allow a single layer download/deployment, easier on low-performance PCs
• Truly one-line deployment (docker-run)
  • Achieved by checkout the repo (depth 1) inside the image
  • Mount config folder to a host folder

Cons:

• Another github action trigger on push/PR to master
• Significant effort to solve permission issue when mounting a volume from inside docker (root) to user-space (low priority)

Describe the solution you'd like

No response

Additional context

No response