Update template-react-ts to React 19

[SoftwareDesign-Solution]

Describe the bug

Please update template-react-ts to React version 19

Reproduction

https://github.com/vitejs/vite/tree/main/packages/create-vite/template-react-ts

Steps to reproduce

No response

System Info

Vite 6.0.7

Used Package Manager

npm

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[sapphi-red]

Closing as #18917 is merged. It'll be released in 6.1.