Improved Login Portal / Login page customization

Improved Login Portal / Login page customization : The login page of NextCloud is rather bland. It allows you to log-in, reset your password, and (if you have the app installed) register, and then you're at the dashboard already. That's about it. Some people might not want more out of the login page, but I think some additional, optional features would be nice. The way it currently works NextCloud is only really useful to set up in an environment where there is internet access and where people have already decided that they want to be users. My inspirations for this...