The optional webpack config for your preload process.
Defaults to the renderer webpack config if blank.
js
js:string
Relative or absolute path to the preload JS file.
Optional prefixedEntries
prefixedEntries?:string[]
Additional entries to put in the array of entries for this preload script,
useful if you need to set up things like error reporting as separate
entry files into your application.
The optional webpack config for your preload process. Defaults to the renderer webpack config if blank.