Cannot use import statement outside a module

[mitchuman]

Describe the bug

Import issue when using and Embedded Studio with SvelteKit

Which versions of Sanity are you using?

@sanity/cli (global)          3.53.0 (up to date)
@sanity/dashboard              4.0.0 (up to date)
@sanity/eslint-config-studio   4.0.0 (up to date)
@sanity/vision                3.53.0 (up to date)
sanity                        3.53.0 (up to date)

What operating system are you using?

Which versions of Node.js / npm are you running?

9.8.1
v18.18.0

Additional context

Setup found here: https://github.com/nuotsu/sanitypress-svelte