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_"

packages/medusa-react/mocks/handlers/admin.ts

@@ -980,6 +980,18 @@ export const adminHandlers = [
     )
   }),
 
+  rest.post("/admin/publishable-api-keys/:id", (req, res, ctx) => {
+    return res(
+      ctx.status(200),
+      ctx.json({
+        publishable_api_key: {
+          ...fixtures.get("publishable_api_key"),
+          ...(req.body as any),
+        },
+      })
+    )
+  }),
+
   rest.post("/admin/publishable-api-keys/", (req, res, ctx) => {
     return res(
       ctx.status(200),