Generated tsconfig.json doesn't fully take the frontend dir location into account

[Legioth]

Description of the bug

The generated tsconfig.json file currently has static references to frontend in the baseUrl and include properties. This needs to be set to src/main/frontend if that's is the frontend directory. Without those properties, VS Code gives 'React' refers to a UMD global, but the current file is a module. Consider adding an import instead. as an error from any code that uses JSX.

Expected behavior

JSX should work out of the box regardless of the frontend directory location

Minimal reproducible example

https://github.com/vaadin/skeleton-starter-hilla-react/tree/6a3abed118968003b03b008be7013143f1780438.

Versions

• Vaadin / Flow version: Vaadin 24.4.0.alpha14
• IDE (if applicable): VS Code 1.87.0