feat(dashboard): create shipment flow (#7898)

**What**
- add "Mark shipped" to Fulfillment section

---

CLOSES CORE-2427

packages/core/js-sdk/src/admin/fulfillment.ts

@@ -1,4 +1,4 @@
-import { HttpTypes } from "@medusajs/types"
+import { HttpTypes, SelectParams } from "@medusajs/types"
 import { Client } from "../client"
 import { ClientHeaders } from "../types"
 
@@ -46,7 +46,7 @@ export class Fulfillment {
     headers?: ClientHeaders
   ) {
     return await this.client.fetch<HttpTypes.AdminFulfillmentResponse>(
-      `/admin/fulfillments/${id}/shipments`,
+      `/admin/fulfillments/${id}/shipment`,
       {
         method: "POST",
         headers,

packages/core/js-sdk/src/admin/order.ts

@@ -1,5 +1,4 @@
 import {
-  AdminCancelOrderFulfillment,
   FindParams,
   HttpTypes,
   PaginatedResponse,