Adds a button to copy the current song URL, works even on YouTube Music homepage
This script adds a new button with a copy icon to the YouTube Music player bar (usually near the volume or playback controls).
When you click this button, it tries to intelligently figure out the URL of the song currently playing (even if you're just browsing the homepage or a playlist) and copies that specific song's URL to your clipboard.
It uses several methods to find the song's ID (checking the URL, player data, thumbnail images) and has a fallback mechanism that tries to use the built-in "Share" function if the primary methods fail. It also provides visual feedback by showing a "Copied!" tooltip on the button after a successful copy. The script includes mechanisms to ensure the button appears reliably, even as you navigate within the YouTube Music site.
