Use server actions instead of client-side API calls

apps/link/app/(main)/layout.tsx

@@ -11,5 +11,11 @@ type LayoutProps = {
 };
 
 export default function Layout({ children }: LayoutProps) {
-  return <InternalLayout>{children}</InternalLayout>;
+  const setupModeActive = process.env.SETUP_MODE === "true";
+
+  return (
+    <InternalLayout setupModeActive={setupModeActive}>
+      {children}
+    </InternalLayout>
+  );
 }