Persistent moderations service, housekeeping

What's Changed

• Persistent moderations by @Kav-K in https://github.com/Kav-K/GPT3Discord/pull/85
• Moderations service will now save its state between restarts, if you start it, it will automatically start itself on bot reboots unless you turn the service off.
• housekeeping, bugfixes by @Kav-K in https://github.com/Kav-K/GPT3Discord/pull/86

Full Changelog: Kav-K/GPT3Discord@v5.0.1...v5.1.1