feat: add ItemOverviewDto for enriched item data in items list

feat: implement CustomerDetailPage for detailed customer view and editing

feat: create CustomersPage for listing and managing customers with filters

feat: add ColumnsMenu component for customizable table columns visibility

feat: implement CSV export functionality for data download

feat: add customer code generation logic for unique customer identifiers

Frontend/erp-system/tailwind.config.ts

@@ -29,7 +29,7 @@ const config: Config = {
         info: "oklch(0.631 0.215 259.262)",
       },
       fontFamily: {
-        sans: "var(--font-geist-sans)",
+        sans: "var(--font-inter)",
         mono: "var(--font-geist-mono)",
       },
       borderRadius: {