chore(deps): bump react from 18.3.1 to 19.0.0 in /examples/hello-world

Bumps [react](https://github.com/facebook/react/tree/HEAD/packages/react) from 18.3.1 to 19.0.0.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/HEAD/packages/react)

---
updated-dependencies:
- dependency-name: react
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

examples/hello-world/package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
-    "react": "^18.3.1",
+    "react": "^19.0.0",
     "react-datepicker": "^7.5.0",
     "react-dom": "^18.3.1",
     "react-scripts": "5.0.1"

examples/hello-world/yarn.lock

@@ -7067,7 +7067,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "hello-world@workspace:."
   dependencies:
-    react: "npm:^18.3.1"
+    react: "npm:^19.0.0"
     react-datepicker: "npm:^7.5.0"
     react-dom: "npm:^18.3.1"
     react-scripts: "npm:5.0.1"
@@ -10955,12 +10955,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react@npm:^18.3.1":
-  version: 18.3.1
-  resolution: "react@npm:18.3.1"
-  dependencies:
-    loose-envify: "npm:^1.1.0"
-  checksum: 10c0/283e8c5efcf37802c9d1ce767f302dd569dd97a70d9bb8c7be79a789b9902451e0d16334b05d73299b20f048cbc3c7d288bbbde10b701fa194e2089c237dbea3
+"react@npm:^19.0.0":
+  version: 19.0.0
+  resolution: "react@npm:19.0.0"
+  checksum: 10c0/9cad8f103e8e3a16d15cb18a0d8115d8bd9f9e1ce3420310aea381eb42aa0a4f812cf047bb5441349257a05fba8a291515691e3cb51267279b2d2c3253f38471
   languageName: node
   linkType: hard