Add Sonner-based notifications and UX polish

app/[locale]/(site)/contact/page.tsx

@@ -5,7 +5,6 @@ import { getTranslations } from "next-intl/server";
 import { Container } from "@/components/layout/container";
 import { PageHero } from "@/components/layout/page-hero";
 import { MotionFade } from "@/components/motion-fade";
-import { FlashMessage } from "@/components/root/flash-message";
 import { ContactForm } from "@/components/site/contact-form";
 import { buildLocalizedMetadata } from "@/lib/metadata";
 import { getPublicContactProtectionSettings } from "@/lib/app-config";
@@ -19,9 +18,6 @@ type ContactPageProps = {
   params: {
     locale: string;
   };
-  searchParams?: {
-    error?: string;
-  };
 };
 
 export async function generateMetadata({
@@ -38,10 +34,7 @@ export async function generateMetadata({
   });
 }
 
-export default async function ContactPage({
-  params: { locale },
-  searchParams,
-}: ContactPageProps) {
+export default async function ContactPage({ params: { locale } }: ContactPageProps) {
   const localeKey = resolveLocale(locale);
   const [t, protection] = await Promise.all([
     getTranslations({ locale: localeKey, namespace: "contactPage" }),
@@ -86,11 +79,6 @@ export default async function ContactPage({
         <MotionFade delay={0.05}>
         <AppCard>
           <CardContent className="pt-6">
-            {searchParams?.error ? (
-              <div className="mb-4">
-                <FlashMessage type="error" message={searchParams.error} />
-              </div>
-            ) : null}
             <ContactForm
               action={submitContactFormAction}
               locale={localeKey}