@kusto/language service includes `require("fs")` calls

@kusto/language service includes `require("fs")` calls which causes bundlers to complain, requiring additional configuration to ignore these calls.

Webpack config looks like this:
```js
export default {
resolve: {
fallback: {
fs: false,
},
}
};
```
https://github.com/Azure/monaco-kusto/blob/134ff03184264a9900737e4b5cf93f69540e1c8e/samples/esm-webpack-react/webpack.config.js#L18

Parcel config looks like this:
```json
{
"alias": {
"process": false
}
}
```
https://github.com/Azure/monaco-kusto/blob/134ff03184264a9900737e4b5cf93f69540e1c8e/samples/parcel/package.json#L13

This is especially problematic for Create React App users because it doesn't expose this configuration.

Start by comparing the referenced samples/esm-webpack-react/webpack.config.js and samples/parcel/package.json with how @kusto/language is bundled. Trace where the require("fs") calls enter the published service, then verify that common bundlers no longer require extra fs configuration, including the Create React App case.

Written by the indexing model from the issue text.