Embed Notice

IT'S WORKING NOW, JUST NEED TO CLEAN THE CODE

stuff to note:
1. we check if preview card URL matches the shared link href attribute
2. we don't need to check for multiple links, because the last link will never match the preview URL in this scenario
3. we append the cleaned link to the preview card "provider name" so people will still find this info --> meaning, we don't actually remove anything, but instead move it into the preview card