Remove examples app landing page (#2678)

This PR removes the examples app landing page, the home route now shows
the basic example.

### Change Type

- [ ] `patch` — Bug fix
- [ ] `minor` — New feature
- [ ] `major` — Breaking change
- [ ] `dependencies` — Changes to package dependencies[^1]
- [x] `documentation` — Changes to the documentation only[^2]
- [ ] `tests` — Changes to any test code only[^2]
- [ ] `internal` — Any other changes that don't affect the published
package[^2]
- [ ] I don't know

[^1]: publishes a `patch` release, for devDependencies use `internal`
[^2]: will not publish a new version


### Release Notes

- Remove examples app landing page

apps/examples/src/HomePage.tsx

@@ -1,24 +0,0 @@
-import { ExamplesLink } from './components/ExamplesLink'
-import ExamplesTldrawLogo from './components/ExamplesTldrawLogo'
-import { examples } from './examples'
-
-export function HomePage() {
-	return (
-		<div className="examples">
-			<div className="examples__header">
-				<div className="examples__title">
-					<ExamplesTldrawLogo /> examples
-				</div>
-				<p>
-					See docs at <a href="https://tldraw.dev">tldraw.dev</a>
-				</p>
-			</div>
-			<ul className="examples__list">
-				{examples.map((e) =>
-					e.value.map((e) => <ExamplesLink key={e.path} example={e} showDescriptionWhenInactive />)
-				)}
-			</ul>
-			<hr />
-		</div>
-	)
-}

apps/examples/src/index.tsx

@@ -8,7 +8,6 @@ import {
 import { createRoot } from 'react-dom/client'
 import { RouterProvider, createBrowserRouter } from 'react-router-dom'
 import { ExamplePage } from './ExamplePage'
-import { HomePage } from './HomePage'
 import { examples } from './examples'
 import EndToEnd from './testing/end-to-end'
 
@@ -19,11 +18,24 @@ import EndToEnd from './testing/end-to-end'
 const assetUrls = getAssetUrlsByMetaUrl()
 setDefaultEditorAssetUrls(assetUrls)
 setDefaultUiAssetUrls(assetUrls)
+const gettingStartedExamples = examples.find((e) => e.id === 'Getting Started')
+if (!gettingStartedExamples) throw new Error('Could not find getting started exmaples')
+const basicExample = gettingStartedExamples.value.find((e) => e.title === 'Basic')
+if (!basicExample) throw new Error('Could not find basic example')
 
 const router = createBrowserRouter([
 	{
 		path: '/',
-		element: <HomePage />,
+		lazy: async () => {
+			const Component = await basicExample.loadComponent()
+			return {
+				element: (
+					<ExamplePage example={basicExample}>
+						<Component />
+					</ExamplePage>
+				),
+			}
+		},
 	},
 	{
 		path: 'end-to-end',