8964 add feature flag is page header v2 enabled (#8995)

Closes #8964

packages/twenty-front/src/modules/ui/layout/page-header/components/PageHeaderOpenCommandMenuButton.tsx

@@ -1,20 +1,38 @@
-import { Button, IconDotsVertical } from 'twenty-ui';
+import { Button, IconButton, IconDotsVertical } from 'twenty-ui';
 
 import { useCommandMenu } from '@/command-menu/hooks/useCommandMenu';
+import { useIsFeatureEnabled } from '@/workspace/hooks/useIsFeatureEnabled';
 
 export const PageHeaderOpenCommandMenuButton = () => {
   const { openCommandMenu } = useCommandMenu();
 
+  const isPageHeaderV2Enabled = useIsFeatureEnabled(
+    'IS_PAGE_HEADER_V2_ENABLED',
+  );
+
   return (
-    <Button
-      Icon={IconDotsVertical}
-      dataTestId="page-header-open-command-menu-button"
-      size="small"
-      variant="secondary"
-      accent="default"
-      shortcut="⌘K"
-      ariaLabel="Open command menu"
-      onClick={openCommandMenu}
-    />
+    <>
+      {isPageHeaderV2Enabled ? (
+        <Button
+          Icon={IconDotsVertical}
+          dataTestId="page-header-open-command-menu-button"
+          size="small"
+          variant="secondary"
+          accent="default"
+          shortcut="⌘K"
+          ariaLabel="Open command menu"
+          onClick={openCommandMenu}
+        />
+      ) : (
+        <IconButton
+          Icon={IconDotsVertical}
+          size="medium"
+          dataTestId="more-showpage-button"
+          accent="default"
+          variant="secondary"
+          onClick={openCommandMenu}
+        />
+      )}
+    </>
   );
 };