Fix flaky E2E tests - update calls to avoid race condition in theme picker rehydration

Author: webstackdev

_TODO.md

@@ -1,9 +1,5 @@
 # TODO
 
-Ensured consent logging never sends malformed IDs by validating/regenerating DataSubjectId inside consent.ts. A new helper now runs on every consent change, fixes the state atom when needed, and uses the regenerated ID immediately so the /api/gdpr/consent payload always passes API validation (no more 400s/console noise on Mobile Safari).
-
-Added regression coverage in consent.spec.ts: the existing happy-path test now uses a valid UUID, and a new test asserts we regenerate & persist a DataSubjectId when the store provides an empty/invalid value before logging.
-
 ## Performance
 
 Implement mitigations in test/e2e/specs/07-performance/PERFORMANCE.md

test/e2e/specs/04-components/theme-picker.spec.ts

@@ -59,6 +59,9 @@ async function navigateWithMobileSupport(basePage: BasePage, href: string = getD
   // Trigger client-side navigation (Astro View Transitions)
   await basePage.navigateToPage(href)
   await basePage.waitForPageLoad()
+  // Header components rehydrate asynchronously after View Transitions; make sure
+  // the theme picker + navigation are ready before interacting again.
+  await waitForHeaderComponents(page)
 
   // On mobile, the menu should automatically close after navigation
   // But let's ensure it's closed by checking and closing if needed