Moved docker-compose singlenode file to the repo root
removed docker build script as it is not really needed
Enabled Java setup flag which was missing for docker

Moved guard init, fixed missing update-themes
Moved docker into its own directory, added singlenode and cluster environment (only singlneode works rn, cluster wip)

Added option to specify config file
Moved docker build out of ox-installer
Fixed broken docker build
Updated readme