feat(react): add raw rolldown support

[sapphi-red]

Description

This adds raw rolldown support. This will make @vitejs/plugin-react to be able to use with rolldown / tsdown.
While the plugins mainly focuses on react-refresh, user may use this plugin for react-compiler.
It'd be nice to make this plugin work with rolldown / tsdown in those cases.
Since the reason is react-compiler, I only made changes to @vitejs/plugin-react.

fixes rolldown/tsdown#294

[ArnaudBarre]

My personal feeling is that a rolldown-babel plugin would take less than 20 lines to write and would be better suited than this one that most of the logic would be useless. But I can understand that people want to use the same dep for various needs

[ArnaudBarre]

we should use tsdown 👀

[sapphi-red]

Users can use @rollup/plugin-babel. I think the upside of supporting it here is that we may introduce some react specific optimization if possible (e.g. only process some modules that contains react compiler needs to handle).