feat(medusa, medusa-js, medusa-react): PublishableApiKey "update" endpoint & add "title" property (#2609)

**What**
- update PK endpoint
  - medusa-js/react implementation
- add a title property to the entity
  - update the migration file
  - pass a title on create
  - list PKs by title
  - update the client libs with new param signatures
- change id prefix to: "pk_"

integration-tests/api/__tests__/admin/sales-channels.js

@@ -9,7 +9,6 @@ const adminSeeder = require("../../helpers/admin-seeder")
 const {
   simpleSalesChannelFactory,
   simpleProductFactory,
-  simpleCartFactory,
 } = require("../../factories")
 const { simpleOrderFactory } = require("../../factories")
 const orderSeeder = require("../../helpers/order-seeder")