Pixel shows 15 regressions, these are expected changes that are
fixing issues on specific viewports that fixes the following:
[At exactly the tablet breakpoint]
* the more menu dropdown was being
shown at the same time as the other menu items, resulting in duplicates
(see https://phabricator.wikimedia.org/F35285379)
[At exactly the desktop breakpoint]
* The table of contents AND the
table of contents toggle button to the left of the title were showing
(see https://phabricator.wikimedia.org/F35285392)
* The sticky header was not showing
* The fly out table of contents was showing instead of the sidebar
table of contents on scroll
* The top of the sidebar is brought into alignment with the tabs
(see https://phabricator.wikimedia.org/F35285408)
Bug: T310536
Change-Id: I6e870a032c8ba4ec003d00ff3f91732aaa2f38b0
