### Background
During design review on T315261, @alexhollender_WMF noticed how the footer isn't [[ https://phabricator.wikimedia.org/F35518293 | aligned with the rest of the page on viewports larger than 1000px ]]. Rather than apply horizontal padding to the footer to match .mw-body, it's simpler and more consistent to move the horizontal padding on .mw-body to the page container instead. This is how spacing is handled on lower viewports, and also solves a few problems at once:
Note in [[ https://phabricator.wikimedia.org/F35518292 | this screenshot ]]:
- The padding on .mw-body means the body content is 24px skinnier than the max width (960px)
- Related articles isn't aligned with the body content
Current:
{F35518315}
Proposed:
{F35518317}
=== AC
[] There is no horizontal padding on .mw-body
[] Footer text and border is always aligned with the header icons
[] Related pages is aligned with the page content (and with the rest of the page on smaller viewports)
=== Developer notes
This should be doable with only CSS adjustments. This would also allow us to simplify some collapsed TOC styles