feat(i18n): setup next-intl core config and translation dictionaries

app/[locale]/about/page.tsx

@@ -0,0 +1,19 @@
+import { AboutContent } from "@/components/about-content";
+import { PersonJsonLd } from "@/components/json-ld";
+
+export default function AboutPage() {
+  return (
+    <>
+      <PersonJsonLd
+        name="Poyraz Avsever"
+        jobTitle="Fullstack Developer"
+        sameAs={[
+          "https://github.com/poyrazavsever",
+          "https://www.linkedin.com/in/poyrazavsever",
+          "https://x.com/poyrazavsever",
+        ]}
+      />
+      <AboutContent />
+    </>
+  );
+}

app/[locale]/about/references/page.tsx

@@ -0,0 +1,5 @@
+import { ReferencesDetailContent } from "@/components/references-detail-content";
+
+export default function AboutReferencesPage() {
+  return <ReferencesDetailContent />;
+}

app/[locale]/about/volunteer-community/page.tsx

@@ -0,0 +1,5 @@
+import { VolunteerCommunityContent } from "@/components/volunteer-community-content";
+
+export default function AboutVolunteerCommunityPage() {
+  return <VolunteerCommunityContent />;
+}