MenuBar: DropdownMenu first item has no visible divider

[crutch12]

Description

First element in MenuBar (DropdownMenu) has additional bottom margin, but there is no visible divider

How to Reproduce
Steps to reproduce the behavior:

1. Go to https://swap.cow.fi/ or https://cow.fi/
2. Open dropdown menu
3. See the bug

Expected behavior

You should see the divider between first and second item

Screenshots

Additional context

Looks like position: relative was lost during Re-branding (#4543)