Apex theme: Follow same FieldLayout `margin` logic as MediaWiki theme
Apex theme: Follow same FieldLayout `margin` logic as MediaWiki theme

Bug: T162798
Change-Id: I2ae39837c55cf23edd4f7ced15f6353f3d871004

wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui