The padding originates from theme.json. We can't however remove it without leaving the block editor with no spacing between the side panels and the content area.
Rather than provide a worse editorial experience, we just override it on the frontend in CSS.
This is actually fixed in core in 6.6.2, which was released yesterday: https://core.trac.wordpress.org/ticket/61704
Since this PR is part of the work towards #365, we can close this PR without merging.
The padding originates from theme.json. We can't however remove it without leaving the block editor with no spacing between the side panels and the content area. Rather than provide a worse editorial experience, we just override it on the frontend in CSS.
Ref: https://github.com/amnestywebsite/humanity-theme/issues/365
Steps to test: