feat(dashboard, medusa, types): orders list on customer details page (#9790)

**What**
- display orders list on customer details

---

CLOSES CC-625

packages/medusa/src/api/admin/orders/validators.ts

@@ -51,7 +51,8 @@ export const AdminGetOrdersParams = createFindParams({
     sales_channel_id: z.array(z.string()).optional(),
     fulfillment_status: z.array(z.string()).optional(),
     payment_status: z.array(z.string()).optional(),
-    region_id: z.array(z.string()).optional(),
+    region_id: z.union([z.string(), z.array(z.string())]).optional(),
+    customer_id: z.union([z.string(), z.array(z.string())]).optional(),
     q: z.string().optional(),
     created_at: createOperatorMap().optional(),
     updated_at: createOperatorMap().optional(),