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/src/commands/admin/stop.ts

@@ -0,0 +1,24 @@
+import { AdminCommand } from '$/classes/Command'
+
+export default new AdminCommand({
+    name: 'stop',
+    description: "You don't want to run this unless the bot starts to go insane, and like, you really need to stop it.",
+    async execute({ api, logger, executor }, trigger) {
+        api.intentionallyDisconnecting = true
+
+        logger.fatal('Stopping bot...')
+        trigger.reply({
+            content: 'Stopping... (I will go offline once done)',
+            ephemeral: true,
+        })
+
+        if (!api.client.disconnected) api.client.disconnect()
+        logger.warn('Disconnected from API')
+
+        trigger.client.destroy()
+        logger.warn('Disconnected from Discord API')
+
+        logger.info(`Bot stopped, requested by ${executor.id}`)
+        process.exit(0)
+    },
+})