feat(bots/discord): framework changes and new features

- Migrated to a new command framework which looks better and works better
- Fixed commands not being bundled correctly
- Added message (prefix) commands with argument validation
- Added a new CommandErrorType, for invalid arguments
- `/eval` is now a bit safer
- Corrected colors for the coinflip embed
- `/stop` now works even when the bot is not connected to the API

bots/discord/scripts/build.ts

@@ -1,5 +1,5 @@
 import { createLogger } from '@revanced/bot-shared'
-import { cp, rename, rm } from 'fs/promises'
+import { cp, rm } from 'fs/promises'
 
 const logger = createLogger()