Feature: Show usernames/password for worlds

Using the same “Tools” button suggested in https://forums.forgevtt.com/t/feature-delete-worlds/110, one of the tools to add, would be the ability to view configured users and their passwords for a world.

A user sometimes forgets the GM password they’ve set, and being able to read the users.db file to recover it as it’s often suggested is not an option with the forge, so we need to expose that information to the user instead via a convenient dialog.
Of course, only give that option to the table’s owner.

Resetting access keys is the preferred method here, and it has been added now.