Prevent bots from taking slot 0 with lua. (electric boogaloo)

Bots love pretending to be the server when a bot is added to a dedicated server. Because of that, when a bot takes slot 0, it's unable to be kicked or banned, or removed at all. (Ref: #1036)

Before: 2023-06-15_19-24-58

After: 2024-03-09_17-27-34