chore(deps): bump react and @types/react in /app/mobile

Bumps [react](https://github.com/facebook/react/tree/HEAD/packages/react) and [@types/react](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react). These dependencies needed to be updated together.

Updates `react` from 19.1.0 to 19.2.7
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/react/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v19.2.7/packages/react)

Updates `@types/react` from 19.1.17 to 19.2.17
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react)

---
updated-dependencies:
- dependency-name: react
  dependency-version: 19.2.7
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: "@types/react"
  dependency-version: 19.2.17
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

app/mobile/package-lock.json

@@ -35,7 +35,7 @@
     "expo-notifications": "^55.0.20",
     "expo-status-bar": "~3.0.9",
     "fast-text-encoding": "^1.0.6",
-    "react": "19.1.0",
+    "react": "19.2.7",
     "react-dom": "19.1.0",
     "react-native": "0.81.5",
     "react-native-get-random-values": "^2.0.0",
@@ -46,7 +46,7 @@
   "devDependencies": {
     "@testing-library/react-native": "^13.3.3",
     "@types/jest": "^29.5.14",
-    "@types/react": "~19.1.0",
+    "@types/react": "~19.2.17",
     "babel-jest": "^29.7.0",
     "babel-preset-expo": "^54.0.10",
     "eslint": "^9.25.0",