message: add empty endpoint array to dev
diff: @@ -20,8 +20,8 @@ import { apolloExplorerPlugin, ApolloExplorerPage } from '../src/plugin';
  createDevApp()
  .registerPlugin(apolloExplorerPlugin)
  .addPage({
  - element: <ApolloExplorerPage />,
  + element: <ApolloExplorerPage endpoints={[]} />,
  title: 'Root Page',
  - path: '/apollo-explorer'
  + path: '/apollo-explorer',
  })
  .render();
  