next.js

632f967e - docs: fix broken Activity Patterns demo link in preserving UI state guide (#91698)

docs: fix broken Activity Patterns demo link in preserving UI state guide (#91698) ## What? Fixes a broken link in the Preserving UI State guide: https://nextjs.org/docs/app/guides/preserving-ui-state#examples The "Activity Patterns demo" link currently points to a non-working URL. ## Why? The demo link returns a 404 / invalid page, which makes the example section confusing for readers. ## Changes - Updated the Activity Patterns demo link to the correct URL. ## Notes No functional changes, docs only. @icyJoseph @delbaoliveira