Remove 'margin-left: -1px;' on "More" menu

This rule doesn't seem to be necessary and interferes with width
measurements, causing the tabs to bounce back and forth at specific
screen sizes.

Bug: T74089
Change-Id: I6a05ccf6eea1a4af22d8df3dd4d507cf9ac1b5f3
Merge "Remove 'margin-left: -1px;' on "More" menu"