fix: contact us navigation on mobile view (#1942)

Author: vamsi4845

apps/mail/components/navigation.tsx

@@ -262,8 +262,8 @@ export function Navigation() {
               </div>
               <a
                 target="_blank"
-                rel="noreferrer"
-                href="https://cal.com/team/0"
+                rel="noreferrer noopener"
+                href="https://cal.com/team/0/chat"
                 className="font-medium"
               >
                 Contact Us