Display contact form in a full-screen widget without scroll bar

Modify ContactSection component to render Mailchimp iframe with `scrolling="no"` and increased height for full-screen display.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: d004b9e1-f9be-46e2-acda-f440ccd644a9
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/af8dabca-e746-4e53-9c29-d8d4d9cf30f5/e2d11d08-168d-4fd5-b4c6-d4e5148dc70f.jpg

client/src/components/contact/contact-section.tsx

@@ -11,26 +11,25 @@ export function ContactSection() {
           </p>
         </div>
         
-        <div className="flex justify-center">
-          <div className="max-w-xl w-full">
-            <div className="bg-gray-50 p-8 rounded-lg shadow-sm">
-              <iframe
-                src="https://us5.list-manage.com/contact-form?u=1d139a47cd1264b937687c37e&form_id=570823f6e3a6f36704ea241f7201c8ac"
-                width="100%"
-                height="600"
-                frameBorder="0"
-                marginHeight={0}
-                marginWidth={0}
-                style={{
-                  border: 'none',
-                  borderRadius: '8px',
-                  backgroundColor: 'transparent'
-                }}
-                title="Contact Form"
-              >
-                Loading contact form...
-              </iframe>
-            </div>
+        <div className="w-full">
+          <div className="w-full max-w-4xl mx-auto">
+            <iframe
+              src="https://us5.list-manage.com/contact-form?u=1d139a47cd1264b937687c37e&form_id=570823f6e3a6f36704ea241f7201c8ac"
+              width="100%"
+              height="800"
+              frameBorder="0"
+              marginHeight={0}
+              marginWidth={0}
+              scrolling="no"
+              style={{
+                border: 'none',
+                overflow: 'hidden',
+                backgroundColor: 'transparent'
+              }}
+              title="Contact Form"
+            >
+              Loading contact form...
+            </iframe>
           </div>
         </div>
       </div>