Cannot use import statement outside a module

[RobEasthope]

Describe the bug

When adding the latexPlugin to the sanity config the Remix Vite app (v.2.12.1) refuses to compile the code giving the following Cannot use import statement outside a module error:

To Reproduce

Steps to reproduce the behavior:

1. Install the plugin (I'm using pnpm if it makes any difference)
2. Add the latexPlugin() to sanity.config.ts
3. Spin up the app in dev mode to see the error

Expected behavior

The code compiles correctly

Which versions of Sanity are you using?

@sanity/cli (global)        3.52.2 (latest: 3.60.0)
@sanity/asset-utils          1.3.0 (latest: 2.0.6)
@sanity/icons                3.4.0 (up to date)
@sanity/image-url            1.0.2 (up to date)
@sanity/preview-url-secret  1.6.20 (latest: 1.6.21)
@sanity/react-loader        1.10.6 (latest: 1.10.7)
@sanity/schema              3.56.0 (latest: 3.60.0)
@sanity/ui                   2.8.9 (up to date)
@sanity/vision              3.56.0 (latest: 3.60.0)
@sanity/visual-editing       2.1.9 (latest: 2.1.10)
sanity  

What operating system are you using?
MacOS Sequoia 15.0 (24A335)

Which versions of Node.js / npm are you running?
v21.5.0