Issue #3459944: [1.0.1] DSFR 1.11: Remove ul li from the actions footer

Closes #3459944

templates/patterns/modal/modal.ui_patterns.yml

@@ -645,19 +645,13 @@ modal:
       description: Modal action (button_group component).
       preview:
         - type: pattern
-          id: button_group
-          variant: inline__lg__right
+          id: button
+          icon: fr-fi-check-line
           icon_position: left
           fields:
-            buttons:
-              - type: pattern
-                id: button
-                icon: fr-fi-check-line
-                icon_position: left
-                fields:
-                  label: First button
-              - type: pattern
-                id: button
-                variant: secondary
-                fields:
-                  label: Second button
+            label: First button
+        - type: pattern
+          id: button
+          variant: secondary
+          fields:
+            label: Second button