Prettier svelte plugin broken

[dbaynard]

> /nix/store/ccpxsrmv7g32sar4xwas5xpxgg4jyxw4-prettier-3.0.0/bin/prettier --plugin /nix/store/izkn8b5dnhs87kxrsi2wjh396hna5y1n-prettier-plugin-svelte-3.0.3/lib/node_modules/prettier-plugin-svelte/plugin.js --version
[error] Cannot find module 'prettier'
[error] Require stack:
[error] - /nix/store/izkn8b5dnhs87kxrsi2wjh396hna5y1n-prettier-plugin-svelte-3.0.3/lib/node_modules/prettier-plugin-svelte/plugin.js

I believe that just passing propagatedBuildDependencies doesn't help… Note that the node2nix version does work.

Since originally hitting this issue, buildNpmPackage may have been upgraded to fix this.