Compatibility with SvelteKit

[jerrygreen]

Is your feature request related to a problem? Please describe.
Is there compatibility with SvelteKit? I found these instructions on Stackoverflow but it seems outdated:

• Is there a way to create a NeutralinoJS project based on Svelte and Typescript?

Instructions look cool except they don't work: they seem to be for Svelte not SvelteKit.

Describe the solution you'd like
I'd like to have some info in docs how to run Neutralino with the SvelteKit sample app.

Describe alternatives you've considered
I tried to figure out how to merge both of them, but it's seems untrivial since I'm new with Neutralino. I happen to make SvelteKit work with Electron but this ain't helping to figure out Neutralino.

[jerrygreen]

After a few hours tinkering, I figured out how to:

1. Make it work for dev environment where the loading url is vite server like http://localhost:5173/
2. Make it work for production, bundling everything into statics and accesing it through locally placed index.html

It required a lot of tricks, like most notable one from this comment #909 (comment):

import authInfo from '../.tmp/auth_info.json'
if (import.meta.env.DEV) {
  const {accessToken, port} = authInfo
  window.NL_PORT = port
  window.NL_TOKEN = accessToken
  window.NL_ARGS = [
    'bin\\neutralino-win_x64.exe',
    '',
    '--load-dir-res',
    '--path=.',
    '--export-auth-info',
    '--neu-dev-extension',
    '--neu-dev-auto-reload',
    '--window-enable-inspector'
  ]
}
window.Neutralino.init()

Because by some reason, global variables aren't set in use-cases like using SvelteKit.

It kinda works now but I have to figure out how to separate these two things, development environment and production.
Of course, I could manually change url inside neutralino.config.json but it's not practical.

neu cli doesn't let me override these settings, though I figured I could use the binaries directly like described here in docs:

• [neutralino.js.org]: Internal CLI Arguments

But when I try to run neutralino-win_x64.exe (I'm on windows), with --config-file, I'm getting this error:

neutralino-dev.config.json file is missing or corrupted.

But it's not missing nor corrupted. It's an exact copy of neutralino.config.dev – which completely fine and works with neu but when I use the binaries directly, it doesn't work. Issue that seems to be around a few years here, unfortunately:

• neutralino.config.json file is missing or corrupted #964

A little help from maintainers would be appreciated. How to communicate different version of config to neu cli or to neutralino binaries, properly?