apache#43252 Disable extra links button if link is null or empty (apa…

…che#43844) (apache#43851)

* Disable button if link is null or empty

* Fix space

---------

Co-authored-by: Enis Nazif <enis@Eniss-MacBook-Pro.local>
(cherry picked from commit de88182)

Co-authored-by: enisnazif <enisnazif@gmail.com>

airflow/www/static/js/dag/details/taskInstance/ExtraLinks.tsx

@@ -55,7 +55,7 @@ const ExtraLinks = ({
 
   const isSanitised = (url: string | null) => {
     if (!url) {
-      return true;
+      return false; // Empty or null urls should cause the link to be disabled
     }
     const urlRegex = /^(https?:)/i;
     return urlRegex.test(url);