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

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

@@ -0,0 +1,33 @@
+'use strict';
+
+const Discord = require('../src/index');
+const { ProxyAgent } = require('proxy-agent');
+
+const proxy = new ProxyAgent({
+  getProxyForUrl: function () {
+    return '<any proxy>';
+  },
+});
+
+const client = new Discord.Client({
+  ws: {
+    agent: proxy, // WebSocket Proxy
+    // Do not use the `proxy` option if you don't need to use the WebSocket Proxy
+  },
+  http: {
+    // API Proxy
+    // Read more: https://github.com/nodejs/undici/blob/main/docs/docs/api/ProxyAgent.md
+    // agent: ProxyAgentOptions
+    agent: 'my.proxy.server',
+    // or new URL('my.proxy.server')
+    // or { uri: 'my.proxy.server' }
+  },
+});
+
+// So if you only need to use the API Proxy (for the purpose of saving data), you don't need to install `proxy-agent`.
+
+client.on('ready', async () => {
+  console.log('Ready!', client.user.tag);
+});
+
+client.login('token');