GitLab

it can easily confuse people before becuase when people accidentally set `env.USER_PERMISSIONS_CHAT_DELETION` to `true/yes/Yes`, `USER_PERMISSIONS["chat"]["deletion"]` would become `False`, which is unexpectedly and hard to notice.

Allow Chat Deletion

Start by renaming variables to something more generic. This will give us a bit more flexibility as we look to other session management mechanisms.