Update src/app/page.tsx

Merge version_1 into main

src/app/page.tsx

@@ -209,8 +209,7 @@ export default function LandingPage() {
           description="Join our movement to raise awareness about Japan's demographic challenges. Share your insights, join our video project, or help us reach more young people. Your voice and involvement can make a real difference."
           inputs={[
             { name: "name", type: "text", placeholder: "Your Name", required: true },
-            { name: "email", type: "email", placeholder: "Your Email", required: true },
-            { name: "interest", type: "text", placeholder: "How would you like to help? (e.g., video production, research, awareness, community work)", required: true }
+            { name: "email", type: "email", placeholder: "Your Email", required: true }
           ]}
           textarea={{
             name: "message",            placeholder: "Tell us your ideas, concerns, or how you'd like to contribute to addressing Japan's demographic crisis...",            rows: 5,