Light Mode: Make Passkey Login table headers visible (#45188)

Author: Hemang360

build/media_source/templates/administrator/atum/scss/pages/_com_users.scss

@@ -100,4 +100,10 @@
       margin-inline-start: 2rem;
     }
   }
+
+  &.view-user {
+    table thead th {
+      color: var(--bs-body-color);
+    }
+  }
 }