4chan Advanced eftir blob

1: Replaces all media URLs in posts with embedded media. Images are expandable. URLs in square brackets will become spoilered media. Works for images, videos and audio.
2: Dropping any files to browser will automatically upload them to catbox.moe forever. You will receive links in a small window.
3: Adds a "Read Aloud" button to every post. Only reads actual text.
4: Makes all non-media links clickable.