Add global search and filtering enhancements

frontend/src/components/index.ts

@@ -4,6 +4,9 @@ export { Breadcrumb } from './Breadcrumb';
 export { SearchInput } from './SearchInput';
 export { SortDropdown } from './SortDropdown';
 export type { SortOption } from './SortDropdown';
+export { FilterDropdown } from './FilterDropdown';
+export type { FilterOption } from './FilterDropdown';
 export { FilterChip, FilterChipGroup } from './FilterChip';
 export { DataTable } from './DataTable';
 export { Pagination } from './Pagination';
+export { GlobalSearch } from './GlobalSearch';