refactor: managements pages simplification

components/admin/management/index.ts

@@ -4,3 +4,6 @@ export { TreeCategoryHeader } from "./tree-category-header";
 export { TreeItemRow } from "./tree-item-row";
 export { TreeSearchControls } from "./tree-search-controls";
 export { TeamMetrics } from "./team-metrics";
+
+// Composant de base pour les pages de gestion
+export { TreeViewPage } from "./tree-view-page";