feat(ui): Enhance homepage responsiveness and layout

This commit introduces several UI improvements to enhance the responsive design and visual appeal of the homepage and main layout.

Key changes include:
- Adjusted the main header to be centered on mobile devices for better alignment.
- Refined the hero section on the homepage with responsive text sizes and improved spacing.
- Modified the "dynamic island" image container to adapt its size and position across different screen sizes.
- Improved typography and layout in the "democratizing tenders" section for better readability.
- Reorganized the contact page into a Next.js route group for better project structure.

app/(contact-us)/page.tsx

@@ -0,0 +1,20 @@
+import ContactUsForm from "./form";
+
+const ContactUs = () => {
+  return (
+    <div className="flex flex-col items-center mt-16 px-8 ">
+      <div className="md:w-2/3 m-auto flex flex-col gap-4 mb-12">
+        <h2 className="font-bold text-4xl">Unlock Your Growth Potential</h2>
+        <p className="font-normal text-[16px] text-gray-600">
+          Register for early access and a free consultation. Let's start winning
+          together.
+        </p>
+      </div>
+      <section className="border border-gray-300 rounded-4xl w-full md:max-w-2/3 flex flex-col items-center bg-white">
+        <ContactUsForm />
+      </section>
+    </div>
+  );
+};
+
+export default ContactUs;