test(rsc): no ssr environment example + fix: ensure `__vite_rsc_assets_manifest.js` on rsc build#564

hi-ogawa wants to merge 14 commits intomainvitejs/vite-plugin-react:mainfrom

chore-rsc-spa-no-ssr-examplevitejs/vite-plugin-react:chore-rsc-spa-no-ssr-exampleCopy head branch name to clipboard