Show a tappable indicator next to highlights that have notes

On Apple Books, every highlight with an attached note has a small square to the left, so that you can tell at a glance which of your highlights have notes:

(You can also tap it to directly open the note entry screen, which saves you time.)

Even though it's a very small feature, this has been the biggest thing that I have missed after migrating my library over from Apple Books. I can no longer tell which of my highlights have notes without either having to open up the note entry card, or going to (my very long) highlights list.

It would really help to make reviewing easier to be able to have this feature (or a one similar to this). :)