[Feature Request] Focus on other users

[VeyDlin]

I have a dedicated IP and I gave my friends the opportunity to try SD together, here are some wishes that we discovered together

1. The progress bar just crashes for everyone if someone started generating until another generation is completed

2. Add displaying a queue for all users when working together (may need a smarter queue system, when, for example, one user generates many images in a batch)

3. It would be good to leave some functions only for the administrator, it is easy to determine by whether there was a connection from a local network or not, then you can hide the settings tab and other functions, the use of which will affect other users

4. A simple user system to be able to create accounts with a limited number of generations or running time 4.1) ...but even password access was great