Move brand refresh to its own page

Fix H1

Style review from tech writer

Co-Authored-By: seaemsi <50173207+seaemsi@users.noreply.github.com>

Author: 2 people

source/brand-refresh-changes/index.html.md.erb

@@ -0,0 +1,16 @@
+---
+title: Brand refresh changes to v4 and v5
+weight: 4
+---
+
+# Brand refresh changes to v4 and v5
+
+We’ve added features from the latest version of GOV.UK Frontend to help more services implement GOV.UK’s refreshed brand. Ahead of the brand’s go-live date of 25 June 2025, you should prepare your service by updating its code. You’ll then need to deploy the changes to production on 25 June 2025 or as soon after this date as possible.
+
+The changes affect these components:
+
+- [GOV.UK header](https://design-system.service.gov.uk/components/header/)
+- [GOV.UK footer](https://design-system.service.gov.uk/components/footer/)
+- [Cookie banner](https://design-system.service.gov.uk/components/cookie-banner/)
+
+We're supporting a refresh of the brand for both v4 and v5. See the [v4.10.0 release notes](https://github.com/alphagov/govuk-frontend/releases/tag/v4.10.0) and [v5.10.0 release notes](https://github.com/alphagov/govuk-frontend/releases/tag/v5.10.0) to see more details and how to update.

source/changes-to-govuk-frontend-v5/index.html.md.erb

@@ -90,16 +90,4 @@ The main accessibility changes are:
 - the focus indicator for [summary list row actions](https://design-system.service.gov.uk/components/summary-list/#adding-actions-to-each-row) will no longer be overlapped by a vertical separator when there's a series of row actions for one list item ([govuk-frontend #3862](https://github.com/alphagov/govuk-frontend/issues/3841))
 - the accessible name for the [header menu](https://design-system.service.gov.uk/components/header/#header-with-service-name-and-navigation) has been changed from "show or hide menu" to "menu", to remove duplicate announcements ([govuk-frontend #3696](https://github.com/alphagov/govuk-frontend/issues/3696))
 - [smaller checkboxes](https://design-system.service.gov.uk/components/checkboxes/#smaller-checkboxes) and [smaller radios](https://design-system.service.gov.uk/components/radios/#smaller-radios) now have a hover state for contrast modes like Windows High Contrast Mode ([govuk-frontend #3695](https://github.com/alphagov/govuk-frontend/issues/3695))
-- [pagination links](https://design-system.service.gov.uk/components/pagination/) for "Next" and "Previous" now have expanded accessible names of "Next page" and "Previous page" ([govuk-frontend #3679](https://github.com/alphagov/govuk-frontend/issues/3679))
-
-## Brand refresh changes to v4 and v5
-
-We’ve added features from the latest version of GOV.UK Frontend to help more services implement GOV.UK’s refreshed brand. Ahead of the brand’s go-live date of 25 June 2025, you should prepare your service by updating its code. You’ll then need to deploy the changes to production on 25 June 2025 or as soon after this date as possible.
-
-These changes affect these components:
-
-- [GOV.UK header](https://design-system.service.gov.uk/components/header/)
-- [GOV.UK footer](https://design-system.service.gov.uk/components/footer/)
-- [Cookie banner](https://design-system.service.gov.uk/components/cookie-banner/)
-
-We're supporting a refresh of the brand for both v4 and v5. See the [v4.10.0 release notes](https://github.com/alphagov/govuk-frontend/releases/tag/v4.10.0) and [v5.10.0 release notes](https://github.com/alphagov/govuk-frontend/releases/tag/v5.10.0) to see more details and how to update.
+- [pagination links](https://design-system.service.gov.uk/components/pagination/) for "Next" and "Previous" now have expanded accessible names of "Next page" and "Previous page" ([govuk-frontend #3679](https://github.com/alphagov/govuk-frontend/issues/3679))

source/v4/index.html.md.erb

@@ -1,6 +1,6 @@
 ---
 title: GOV.UK Frontend (v4.x)
-weight: 0
+weight: 5
 hide_in_navigation: true
 ---