Check for attachments once discord.js 11.2.0 is released

[anoadragon453]

        };
        // Uncomment this and remove !hasAttachment above after https://github.com/hydrabolt/discord.js/pull/1449 pulled
        // if (hasAttachment) {
        //   hookOpts.file = opts.file;
        //   msg = await hook.send(embed.description, hookOpts);
        // } else {
        msg = await hook.send(embed.description, hookOpts);
// }

From: https://github.com/Half-Shot/matrix-appservice-discord/blob/develop/src/bot.ts#L206

discordjs/discord.js#1449 is now merged, so maybe you want to uncomment it? :P

[Half-Shot]

This would require upgrading to 11.2.0, so I'll leave it until release 0.1.0 comes out.

[Half-Shot]

This has since been fixed in d123d5f