message: chore: update playground
diff: import React from 'react';
  -import {extend, render, Card} from '@shopify/argo-admin-react';
  +import {extend, render, Text} from '@shopify/argo-admin-react';
  function App() {
  - return (
  - <Card title="Hello world" sectioned>
  - From 3p code
  - </Card>
  - );
  + return <Text size="titleMedium">From 3p code</Text>;
  }
  extend(
  'Playground',
  render(() => <App />),
  );
  +extend(
  + 'Admin::Product::SubscriptionPlan::Add',
  + render(() => <App />),
  +);
  +extend(
  + 'Admin::Product::SubscriptionPlan::Create',
  + render(() => <App />),
  +);
  +extend(
  + 'Admin::Product::SubscriptionPlan::Edit',
  + render(() => <App />),
  +);
  +extend(
  + 'Admin::Product::SubscriptionPlan::Remove',
  + render(() => <App />),
  +);
  