Increase page title margin

Pamela Baronerequested to merge
issue/drupal-3637899:3637899-page-title-needs into main

Closes #3637899

Gin had use size-s for top and bottom but I think it looks better with a bit more room so went with space-m.

After

Screenshot 2026-11-13 at 11.22.06 am.png

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