TODO: fix user custom 404 page

[csr632]

In this line:

vite-plugin-react-pages/packages/theme-doc/src/index.tsx

Line 51 in 8b980d9

const Comp404 = loadedData['/404']?.main?.default

Page data of /404 is not loaded yet, so Comp404 is always undefined. vite-pages should provide an api to let themes pull page data manually.

[csr632]

vite-pages should provide an api to let themes pull page data manually.

After more consideration, I think vite-pages core itself don't need to provide more apis. User can pass 404 Component directly to theme directory via _theme.tsx and vite-pages core don't need to care about that. Users don't need to create a page named 404 any more.

Expose api for manually control page data would make server-side-generation more complex.