[BOAT] Make manual mutes count towards rule -1

[BenSegal855]

This PR keeps track of mutes which are applied without the use of the enforce command. Mutes applied using the mute command and manual role management are included. They are stored in the enforce collection under rule -1 just like muted leaves are.

*note: I had to change the tsconfig target, lib, and module keys to es2020 to get the bot to run even before my changes. This change is not included in this PR as the existing esnext configuration may work fine on other systems

[cyyynthia]

I'm honestly unsure if I'm fine with this implementation or not; other than code style issues (import type transformed into import), I feel like this implementation is rather dirty (and this honestly applies to behavior already relying on this, just that having multiple unrelated bits kind of "glued" with this hacky thing is even worse)

as of your tsconfig issues, you just have an outdated node version. (node 15+ required).