feat: update govuk-frontend to 5.10.0#379

Draft

alexisc-kainos wants to merge 5 commits intomasterfrom

feature-BL-19139-investigate-govuk-brand-refresh

Commits on May 19, 2025

feat: update govuk-frontend to 5.10.0
Alexis Corney
committed
feat: composer v update
Alexis Corney
committed
feat: add override for header word-spacing
Alexis Corney
committed
feat: update custom-header
Alexis Corney
committed
feat: update custom header
Alexis Corney
committed