Fix remaining GitHub links to use correct username

Author: Archith

app.html

@@ -140,11 +140,11 @@ <h3>Login as Interviewer</h3>
             <p style="margin: 0;">Made with ❤️ by the OpenCollab Community</p>
           </div>
           <div class="footer-links">
-            <a href="https://github.com/yourusername/OpenCollab" target="_blank">GitHub</a>
+            <a href="https://github.com/humancto/CollabCode" target="_blank">GitHub</a>
             <span class="footer-separator">•</span>
-            <a href="https://github.com/yourusername/OpenCollab/issues" target="_blank">Issues</a>
+            <a href="https://github.com/humancto/CollabCode/issues" target="_blank">Issues</a>
             <span class="footer-separator">•</span>
-            <a href="https://github.com/yourusername/OpenCollab/wiki" target="_blank">Documentation</a>
+            <a href="https://github.com/humancto/CollabCode/wiki" target="_blank">Documentation</a>
           </div>
         </div>
       </footer>