refactor: modularize AdminClientWrapper by extracting components

- Removed unused imports and components from AdminClientWrapper.
- Introduced AdminHeader, AdminOverviewCards, AdminFilters, and AdminContentTabs for better code organization and readability.
- Streamlined the layout and functionality of the admin dashboard, enhancing maintainability.

components/admin/index.ts

@@ -3,3 +3,7 @@ export { DirectionOverview } from "./direction-overview";
 export { MultiSelectFilter } from "./multi-select-filter";
 export { AdminClientWrapper } from "./admin-client-wrapper";
 export { TeamDetailClientWrapper } from "./team-detail-client-wrapper";
+export { AdminHeader } from "./admin-header";
+export { AdminOverviewCards } from "./admin-overview-cards";
+export { AdminFilters } from "./admin-filters";
+export { AdminContentTabs } from "./admin-content-tabs";