feat(customer): list customer (#6206)

**What**

- GET /admin/customers
- GET /admin/customer-groups

packages/customer/tsconfig.json

@@ -23,7 +23,7 @@
       "@models": ["./src/models"],
       "@services": ["./src/services"],
       "@repositories": ["./src/repositories"],
-      "@types": ["./src/types"],
+      "@types": ["./src/types"]
     }
   },
   "include": ["src"],