Move Docker Registry somewhere else

Since Docker, Inc. really doesn’t want to host container images for free anymore, especially for groups, it might be a good idea to publish the images somewhere else aswell. Since the code is already on Github maybe might be a good idea. It shouldn’t be too hard to push the images there as well.

Alternatively has a free offering

Long term that could be an option. However, LibreTranslate has just been approved under Docker’s open source program, so seems we’ll be able to continue to use docker hub for the time being. :tada: