[ENH]Create a theme-friendly comment highlight
Task : https://avan.tech/item75530
Previous MR is closed due to conflicts
**Description : **
Here we add a css class after the scroll animation is complete
to highlight the tagged comment.
Cause : When using some dark themes, if the comment is pinned with anchor, we're merging the text with the background.
Thanks to @jonnybradley for the help!
Edited by John Santos