fix(web): add proper Vietnamese diacritics to all dashboard and listing pages

Vietnamese text throughout the frontend was missing accent marks (diacritics),
using plain ASCII instead of proper Unicode characters. Fixed all user-visible
text across dashboard, analytics, listings, search, and chart components.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/web/app/(public)/search/page.tsx

@@ -14,7 +14,7 @@ const ListingMap = dynamic(
     ssr: false,
     loading: () => (
       <div className="flex h-[calc(100vh-220px)] items-center justify-center rounded-lg bg-muted">
-        <p className="text-sm text-muted-foreground">Dang tai ban do...</p>
+        <p className="text-sm text-muted-foreground">Đang tải bản đồ...</p>
       </div>
     ),
   },