feat(dashboard): metadata component (#7117)

**What**
- add new metadata component

**Note**
- _example of usage on customer edit form_
- we are not handling update metadata case in the internal module service so for now delete case doesn't work properly

---


https://github.com/medusajs/medusa/assets/16856471/b588752d-9cf5-4d96-9cf8-760a764ab03e

packages/medusa/src/api-v2/admin/customers/middlewares.ts

@@ -3,7 +3,7 @@ import * as QueryConfig from "./query-config"
 import {
   AdminCreateCustomer,
   AdminCreateCustomerAddress,
-  AdminCustomerAdressesParams,
+  AdminCustomerAddressesParams,
   AdminCustomerParams,
   AdminCustomersParams,
   AdminUpdateCustomer,
@@ -100,7 +100,7 @@ export const adminCustomerRoutesMiddlewares: MiddlewareRoute[] = [
     matcher: "/admin/customers/:id/addresses",
     middlewares: [
       validateAndTransformQuery(
-        AdminCustomerAdressesParams,
+        AdminCustomerAddressesParams,
         QueryConfig.listAddressesTransformQueryConfig
       ),
     ],

packages/medusa/src/api-v2/admin/customers/query-config.ts

@@ -5,6 +5,7 @@ export const defaultAdminCustomerFields = [
   "last_name",
   "email",
   "phone",
+  "metadata",
   "has_account",
   "created_by",
   "created_at",

packages/medusa/src/api-v2/admin/customers/validators.ts

@@ -48,6 +48,7 @@ export const AdminCreateCustomer = z.object({
   first_name: z.string().optional(),
   last_name: z.string().optional(),
   phone: z.string().optional(),
+  metadata: z.record(z.unknown()).optional(),
 })
 
 export const AdminUpdateCustomer = z.object({
@@ -56,6 +57,7 @@ export const AdminUpdateCustomer = z.object({
   first_name: z.string().nullable().optional(),
   last_name: z.string().nullable().optional(),
   phone: z.string().nullable().optional(),
+  metadata: z.record(z.unknown()).optional(),
 })
 
 export const AdminCreateCustomerAddress = z.object({
@@ -77,7 +79,7 @@ export const AdminCreateCustomerAddress = z.object({
 
 export const AdminUpdateCustomerAddress = AdminCreateCustomerAddress
 
-export const AdminCustomerAdressesParams = createFindParams({
+export const AdminCustomerAddressesParams = createFindParams({
   offset: 0,
   limit: 50,
 }).merge(