Missing export condition for svelte in package.json

[SamMousa]

vite-plugin-svelte is now giving a warning for svelte-fuse-rx:

[vite-plugin-svelte] WARNING: The following packages have a svelte field in their package.json but no exports condition for svelte.

The fix should be simply to add an export condition for svelte in the package.json file.

https://kit.svelte.dev/docs/packaging

https://github.com/sveltejs/vite-plugin-svelte/blob/main/docs/faq.md#missing-exports-condition