Add incremental import support and tracking for database synchronization

inventory/src/components/settings/DataManagement.tsx

@@ -13,7 +13,7 @@ import {
   AlertDialogTitle,
   AlertDialogTrigger,
 } from "@/components/ui/alert-dialog";
-import { Loader2, RefreshCw, Upload, X, Database } from "lucide-react";
+import { Loader2, RefreshCw, X, Database } from "lucide-react";
 import config from '../../config';
 import { toast } from "sonner";
 
@@ -36,11 +36,6 @@ interface ImportProgress {
   duration?: string;
 }
 
-interface ImportLimits {
-  products: number;
-  orders: number;
-  purchaseOrders: number;
-}
 
 export function DataManagement() {
   const [isImportingProd, setIsImportingProd] = useState(false);