[1439] Fix unique key prop on Groups' ToolbarActions

Fix "Warning: Each Child in a List Should Have a Unique 'key' Prop"

Bug: #1439
Signed-off-by: Axel RICHARD <axel.richard@obeo.fr>

packages/forms/frontend/sirius-components-forms/src/groups/Group.tsx

@@ -107,13 +107,12 @@ export const Group = ({ editingContextId, formId, group, widgetSubscriptions, se
     toolbar = (
       <div className={classes.toolbar}>
         {group.toolbarActions.map((toolbarAction) => (
-          <div className={classes.toolbarAction}>
+          <div className={classes.toolbarAction} key={toolbarAction.id}>
             <ToolbarAction
               editingContextId={editingContextId}
               formId={formId}
               readOnly={readOnly}
               widget={toolbarAction}
-              key={toolbarAction.id}
             />
           </div>
         ))}