Bump react, react-dom and @types/react

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

Updates `react` from 18.3.1 to 19.1.1
- [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/v19.1.1/packages/react)

Updates `react-dom` from 18.3.1 to 19.1.1
- [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/v19.1.1/packages/react-dom)

Updates `@types/react` from 18.3.12 to 19.1.8
- [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: 19.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: react-dom
  dependency-version: 19.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: "@types/react"
  dependency-version: 19.1.8
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -19,8 +19,8 @@
     "next": "^15.1.0",
     "next-auth": "^5.0.0-beta.25",
     "postcss": "8.5.6",
-    "react": "18.3.1",
-    "react-dom": "18.3.1",
+    "react": "19.1.1",
+    "react-dom": "19.1.1",
     "tailwindcss": "3.4.16",
     "typescript": "5.8.3",
     "undici": "^7.3.0",
@@ -30,7 +30,7 @@
     "@types/bcrypt": "^5.0.2",
     "@types/d3": "^7.4.3",
     "@types/node": "24.0.4",
-    "@types/react": "18.3.12",
+    "@types/react": "19.1.8",
     "@types/react-dom": "18.3.1",
     "eslint": "9.31.0",
     "eslint-config-next": "^15.1.0"