Fix new "context:save" command for new contexts: properly ask for a name, and throw and exception if no name and non-interactive.

Only write a docker-compose.ym file if there are services attached to the server. Otherwise you might overwrite someone's custom docker-compose.yml.

Refactor how check for docker services happens. If services is empty but there is a docker-compose.yml file in the server config path, just use that. If there is a service implementing DockerServiceInterface.

Initiate the $context->dockerCompose property when a docker-compose.yml file is found in the server directory. This allows "Servers" to just pass everything to docker-compose.

Instead of using usermod, delete the users and create anew, so we can use --no-log-init option. Without this option, users with very large UID numbers were experiencing docker build hangs, and filling up drives. See https://github.com/moby/moby/issues/5419

Return the entire Process object from process_exec, and properly pass the exit code from verbose calls.

PROVISION_WEB_UID and PROVISION_USER_UID to .env files