chore: release examples-ui with react 19 / layout export (#1344)

### Description

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### Demo URL

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### Type of Change

- [ ] New Example
- [ ] Example updates (Bug fixes, new features, etc.)
- [ ] Other (changes to the codebase, but not to examples)

### New Example Checklist

- [ ] 🛫 `npm run new-example` was used to create the example
- [ ] 📚 The template wasn't used but I carefuly read the [Adding a new
example](https://github.com/vercel/examples#adding-a-new-example) steps
and implemented them in the example
- [ ] 📱 Is it responsive? Are mobile and tablets considered?

Author: ecklf

internal/.changeset/many-owls-eat.md

@@ -0,0 +1,5 @@
+---
+'@vercel/examples-ui': patch
+---
+
+Export layout, react 19

internal/packages/ui/package.json

@@ -27,6 +27,9 @@
       "index": [
         "src/index"
       ],
+      "layout": [
+        "src/layout"
+      ],
       "tailwind": [
         "dist/tailwind.d.cts"
       ]
@@ -38,6 +41,9 @@
         "index": [
           "dist/index.d.ts"
         ],
+        "layout": [
+          "dist/layout.d.ts"
+        ],
         "tailwind": [
           "dist/tailwind.d.cts"
         ]
@@ -46,8 +52,8 @@
   },
   "peerDependencies": {
     "next": "*",
-    "react": "^17.0.2 || ^18.0.0-0",
-    "react-dom": "^17.0.2 || ^18.0.0-0"
+    "react": "^17.0.2 || ^18.0.0-0 || ^19.0.0-0",
+    "react-dom": "^17.0.2 || ^18.0.0-0 || ^19.0.0-0"
   },
   "dependencies": {
     "@swc/helpers": "^0.5.1",