feat(medusa-js, medusa-react): Update jsdoc with experimental annotation for sales channels (#1811)

**What**
- Add tag to indicate methods are part of an experimental feature under development

**Why**
- To notify developers because we cant support featureflags in the same way from the client side libraries.

packages/medusa-js/src/resources/admin/sales-channels.ts

@@ -6,7 +6,9 @@ import { ResponsePromise } from "../../typings"
 import BaseResource from "../base"
 
 class AdminSalesChannelsResource extends BaseResource {
-  /**
+  /** retrieve a sales channel
+   * @experimental This feature is under development and may change in the future.
+   * To use this feature please enable featureflag `sales_channels` in your medusa backend project.
    * @description gets a sales channel
    * @returns a medusa sales channel
    */
@@ -23,7 +25,10 @@ class AdminSalesChannelsResource extends BaseResource {
     customHeaders: Record<string, any> = {}
   ): ResponsePromise<any> {}*/
 
-  /** @description updates a sales channel
+  /** update a sales channel
+   * @experimental This feature is under development and may change in the future.
+   * To use this feature please enable featureflag `sales_channels` in your medusa backend project.
+   * @description updates a sales channel
    * @returns the updated medusa sales channel
    */
   update(

packages/medusa-react/src/hooks/admin/sales-channels/mutations.ts

@@ -8,6 +8,12 @@ import { useMedusa } from "../../../contexts"
 import { buildOptions } from "../../utils/buildOptions"
 import { adminSalesChannelsKeys } from "./queries"
 
+/** update a sales channel
+ * @experimental This feature is under development and may change in the future.
+ * To use this feature please enable featureflag `sales_channels` in your medusa backend project.
+ * @description updates a sales channel
+ * @returns the updated medusa sales channel
+ */
 export const useAdminUpdateSalesChannel = (
   id: string,
   options?: UseMutationOptions<

packages/medusa-react/src/hooks/admin/sales-channels/queries.ts

@@ -13,6 +13,12 @@ export const adminSalesChannelsKeys = queryKeysFactory(
 
 type SalesChannelsQueryKeys = typeof adminSalesChannelsKeys
 
+/** retrieve a sales channel
+ * @experimental This feature is under development and may change in the future.
+ * To use this feature please enable featureflag `sales_channels` in your medusa backend project.
+ * @description gets a sales channel
+ * @returns a medusa sales channel
+ */
 export const useAdminSalesChannel = (
   id: string,
   options?: UseQueryOptionsWrapper<