Update site branding and partnership information

Remove Nostra branding from the header and add partnership text to the footer.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 069d4324-6c40-4355-955e-c714a50de1ea
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/3df548ff-50ae-432f-9be4-25d34eccc983/069d4324-6c40-4355-955e-c714a50de1ea/LZrXNFV

client/src/components/Footer.tsx

@@ -22,6 +22,13 @@ export default function Footer() {
             </div>
           </div>
 
+          {/* Partnership Information */}
+          <div className="flex items-center justify-center mb-3">
+            <p className="text-xs text-gray-500" data-testid="partnership-text">
+              In partnership with Nostra
+            </p>
+          </div>
+
           {/* Copyright and Links */}
           <div className="flex flex-col md:flex-row justify-between items-start md:items-center pt-3 border-t border-gray-200">
             <p className="text-xs text-gray-600 mb-2 md:mb-0" data-testid="copyright-text">