Resolve "Permissions Issue with Vault MACOS"

Closes #542 (closed) The recent vault permissions issue which was merged into dev recently has an issue documented by @codefriar.

chown $$user:$$user settings/vault.yaml

in MACOS it's

chown $$user:staff

This isn't the same for every system. There are several options. Running the docker container with the --user flag to make sure it runs processes as the corresponding group and user as the host system. Or, changing the chown command from

chown $$user:$$user settings/vault.yaml

to

chown $(id -u):$(id -g)