v1.6.4

V.1.6.4:

• [❌] Removed youtube downloaders because there are way better options to download yt videos, such as
  this
• [✔️] Added progress bar
• [➡️] Now using os.path.join for handling file paths to enhance platform independence
• [➡️] code changes, no change for user:
  • Added if name == main
  • Replaced individual functions like ico2png, flv2avi, etc., with unified anything_to_x functions.