Explorer: Scrollbar is almost invisible in a tablet resolution on order details page

[elena-zh]

Discussed in https://cowservices.slack.com/archives/C036G0J90BU/p1769618271696089?thread_ts=1769617672.544889&cid=C036G0J90BU

To reproduce:

1. Open an order details on Explorer (example) in Chrome
2. Open devtools from the right side to reduce a screen width
3. Try to find a scrollbar

AR: it is almost invisible

ER: it should be visible