release: v0.19.0

Release v0.19.0. See the `## [0.19.0] — 2026-09-29` section of
[CHANGELOG.md](https://github.com/ralksta/immich-folio/blob/dev/CHANGELOG.md)
for the full list.

Highlights: client proofing links (#683), custom content pages (#738),
asset picker search (#740), concurrent-edit detection (#742), env-locked
settings (#739), an accessibility baseline (#741), three security fixes
with advisories (#737, #755, #759), and a pre-release quality pass
(#780–#797).

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: ralksta <ralksta@users.noreply.github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Ralf <rohlenbo79@gmail.com>
Co-authored-by: Paul Thies <110185070+ImScheinox@users.noreply.github.com>
Co-authored-by: lancetm714 <108419425+lancetm714@users.noreply.github.com>
Co-authored-by: Lance Martin <lancetaylor95@gmail.com>

app/admin/layout.tsx

@@ -16,9 +16,15 @@ export const metadata: Metadata = {
  */
 export const dynamic = 'force-dynamic';
 
+/**
+ * `lang="en"`: `<html lang>` follows the site language (settings.yaml `lang`),
+ * but the admin is deliberately untranslated. Without this a screen reader
+ * read the English interface with a German voice on a `lang: de` site.
+ * The Listbox popup is portalled to <body> and still inherits the root value.
+ */
 export default function AdminLayout({ children }: { children: React.ReactNode }) {
   return (
-    <div className="admin-layout">
+    <div className="admin-layout" lang="en">
       <AdminShell>{children}</AdminShell>
     </div>
   );