fix regression

lib/downloader.js

@@ -9,8 +9,10 @@ catch (e) {
     console.warn("settings.json not found")
 }
 
+const isWindows = process.platform === 'win32';
+
 const download = (socket, url) => {
-    const ytldp = spawn('./lib/yt-dlp.exe',
+    const ytldp = spawn(`./lib/yt-dlp${isWindows ? '.exe' : ''}`,
         ['-o', `${settings.download_path || './downloads/'}%(title)s.%(ext)s`, url]
     )