Fix Admin Notices not showing on the Dashboard (v2.4.2)

admin_notices fires everywhere, but prints inside #wpbody, which
DashboardTakeover hides entirely on the Dashboard (to hide the *native*
dashboard, not ours) — notices went down with it as collateral damage.
Notices::render_for_dashboard() now renders directly inside the visible
dashboard frame instead, called from DashboardTakeover::render_mount();
the normal admin_notices path bails on the Dashboard so it isn't
rendered twice.

Second, independent bug found along the way: wp-admin/js/common.js
unconditionally relocates every .notice element on the page to right
after the page's <h1>, regardless of where it was placed server-side —
without opting out, it would've silently moved our notice right back
into the hidden #wpbody. Used core's own documented `below-h2` class to
opt out, only for the dashboard render path.

Verified live: notice now shows correctly inside the dashboard frame
with proper dark styling, and dismisses correctly.

Co-Authored-By: Claude Sonnet 5 <[email protected]>

app/src/shell/windowChrome.js

@@ -87,6 +87,15 @@ export function initWindowChrome(adminUrl) {
     frame.className = 'aurora-dashboard-frame';
     dashboardRoot.parentNode.insertBefore(frame, dashboardRoot);
     frame.appendChild(bar);
+    // Custom admin notices (Notices::render_for_dashboard(), printed as a
+    // sibling right before the mount point) — reparented into the frame
+    // here too, so they render as part of the dashboard's own card
+    // instead of sitting outside it unstyled. Normally these reach the
+    // user via the plain admin_notices hook, but that renders inside
+    // #wpbody, which the Dashboard hides entirely to hide the *native*
+    // dashboard widgets — this is the replacement path for that one page.
+    const notices = document.getElementById('aurora-admin-dashboard-notices');
+    if (notices) frame.appendChild(notices);
     frame.appendChild(dashboardRoot);
     return;
   }