chore: move outline to another repo

[SilasPeters]

I would like to discuss moving the config files of Outline (Sticky Compendium) to another repo.

It's way easier to just keep the docker files in sadserver, because after all we need to copy those files to the server.
However, keeping in mind seperation of concerns, wouldn't it be cleaner if we revived svsticky/Sticky-Compendium (or create a new one) and instead host the docker files there? Then, sadserver does not get issues, PRs and other noise from maintaining the service, whilst the deployment files never change.

But perhaps most importantly, this does not scale well. If all projects in docker, do we all maintain them in here?