Feature Request: Add Ability to Keep Container Running

[HarryMuscle]

On some systems like for example those running Kubernetes to manage Docker containers (ie: TrueNAS Scale and other enterprise systems) it takes a good 60+ seconds to start a Docker container. Having to do that every time you want to download a video that might take just a few seconds to download isn't ideal. It would be nice if there was an option that can be specified that would allow the container to keep running without actually doing anything and one would interact with it by issuing "docker container exec ..." commands on the host to trigger video downloads.