Highlight scrollable compartment list

[NXXR]

Based on feedback we should increase the suggestion that the expanded compartment list is scrollable as the added scroll bar may not be enough.

We could add a box shadow to the bottom of the scrollable container to suggest more content hiding at the bottom of the container like this:

Mockups (click to expand)

by adding box-shadow: inset 0 -10px 10px -10px #000; to the container