refactor: vendor content as regular files (remove git submodules) so CI builds don't need GitHub auth

vendor/discord.js-selfbot-v13/examples/AuthorizeUserApps.js

@@ -0,0 +1,12 @@
+'use strict';
+
+const Discord = require('../src/index');
+
+const client = new Discord.Client();
+
+client.on('ready', async () => {
+  console.log('Ready!', client.user.tag);
+  await client.installUserApps('936929561302675456'); // Midjourney
+});
+
+client.login('token');