fix(perf): map img tag in MDX to Next.js Image optimizer for massive performance gains

app/[locale]/page.tsx

@@ -38,6 +38,10 @@ const mdxComponents = (references: any[]) => ({
   AnimatedCounter,
   InteractiveGermanyMap,
   ScaleOfImpact,
+  img: (props: any) => {
+    // We proxy it through Next.js image optimizer
+    return <img {...props} src={`/_next/image?url=${encodeURIComponent(props.src)}&w=1920&q=75`} loading="lazy" decoding="async" />;
+  }
 });
 
 export async function generateMetadata(props: any): Promise<Metadata> {