use x.com and twitter's new X logo (#59482)

Author: partev

web/pandas/_templates/layout.html

@@ -73,8 +73,8 @@
                     </a>
                 </li>
                 <li class="list-inline-item">
-                    <a href="https://twitter.com/pandas_dev/">
-                        <i class="fab bi bi-twitter"></i>
+                    <a href="https://x.com/pandas_dev/">
+                        <i class="fab bi bi-twitter-x"></i>
                     </a>
                 </li>
                 <li class="list-inline-item">