fix(bots/discord): remove bad text channel checks

bots/discord/src/commands/moderation/purge.ts

@@ -1,4 +1,4 @@
-import { EmbedBuilder, GuildChannel } from 'discord.js'
+import { EmbedBuilder } from 'discord.js'
 
 import { ModerationCommand } from '$/classes/Command'
 import CommandError, { CommandErrorType } from '$/classes/CommandError'
@@ -31,7 +31,7 @@ export default new ModerationCommand({
             throw new CommandError(CommandErrorType.MissingArgument, 'Either `amount` or `until` must be provided.')
 
         const channel = interaction.channel!
-        if (!(channel.isTextBased() && channel instanceof GuildChannel))
+        if (!channel.isTextBased())
             throw new CommandError(CommandErrorType.InvalidChannel, 'The supplied channel is not a text channel.')
 
         const embed = applyCommonEmbedStyles(

bots/discord/src/commands/moderation/slowmode.ts

@@ -28,7 +28,7 @@ export default new ModerationCommand({
         if (!channel?.isTextBased() || channel.isDMBased())
             throw new CommandError(
                 CommandErrorType.InvalidChannel,
-                'The supplied channel is not a text channel or does not exist.',
+                'The supplied channel is not a text channel.',
             )
 
         if (Number.isNaN(duration)) throw new CommandError(CommandErrorType.InvalidDuration, 'Invalid duration.')

bots/discord/src/utils/discord/moderation.ts

@@ -38,7 +38,7 @@ export const getLogChannel = async (guild: Guild) => {
 
     try {
         const channel = await guild.channels.fetch(logConfig.thread ?? logConfig.channel)
-        if (!channel || !channel.isTextBased())
+        if (!channel?.isTextBased())
             return void logger.warn('The moderation log channel does not exist, skipping logging')
 
         return channel