Missing map for DataWorker and SortWorker - Sveltekit

Occasionally when developing with sveltekit these two 404 errors will occur.
```
SvelteKitError: Not found: /DataWorker.js.map
at resolve (E:\big_projects\gsplat-editor\node_modules\@sveltejs\kit\src\runtime\server\respond.js:522:13)
at resolve (E:\big_projects\gsplat-editor\node_modules\@sveltejs\kit\src\runtime\server\respond.js:322:5)
at #options.hooks.handle (E:\big_projects\gsplat-editor\node_modules\@sveltejs\kit\src\runtime\server\index.js:71:56)
at Module.respond (E:\big_projects\gsplat-editor\node_modules\@sveltejs\kit\src\runtime\server\respond.js:319:40)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5) {
status: 404,
text: 'Not Found'
}
SvelteKitError: Not found: /SortWorker.js.map
at resolve (E:\big_projects\gsplat-editor\node_modules\@sveltejs\kit\src\runtime\server\respond.js:522:13)
at resolve (E:\big_projects\gsplat-editor\node_modules\@sveltejs\kit\src\runtime\server\respond.js:322:5)
at #options.hooks.handle (E:\big_projects\gsplat-editor\node_modules\@sveltejs\kit\src\runtime\server\index.js:71:56)
at Module.respond (E:\big_projects\gsplat-editor\node_modules\@sveltejs\kit\src\runtime\server\respond.js:319:40)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5) {
status: 404,
text: 'Not Found'
}
```

I believe this is caused by a misconfiguration of `rollup-plugin-web-worker-loader` in the `rollupconfig.js`, I think the sourcemap parameter should be set to true on [this](https://github.com/huggingface/gsplat.js/blob/c7d1f8a3d97c570318e426c961c57cec3dfc61c5/rollup.config.js#L22C1-L22C53
) line
I haven't been able to reproduce this well enough to ensure that this fixes the issue but I'll report back when I can

Start in rollup.config.js at the rollup-plugin-web-worker-loader configuration referenced by the issue, and reproduce the SvelteKit development requests for DataWorker.js.map and SortWorker.js.map if possible. Verify whether the configuration change prevents both 404 errors and confirm the result with a development run.

Written by the indexing model from the issue text.