Unable to pass Publish options to electron-builder

# Bug Report

## Problem

### What is expected to happen?
I am able to pass configuration to electron-builder to define Publish parameters.

### What does actually happen?
I am unable to pass parameters correctly through to electron-builder. It seems that the way cordova-electron intermediates between the developer and electron-builder is unnecessarily complex and leads to errors and problems with the ability to configure electron-builder.

According to the documentation for electron-builder, you should be able to pass through "publish" options as a top-level object, or per platform or per target: https://www.electron.build/configuration/publish

## Information

According to the documentation for cordova-electron, the only valid keys for the "electron" config object in the `build.json` file are "mac", "windows" and "linux". Anything else is ignored and not passed through to electron-builder in the `builder-effective-config.yaml` file.

### Command or Code

### Environment, Platform, Device

### Version information

## Checklist

- [x ] I searched for existing GitHub issues
- [ x] I updated all Cordova tooling to most recent version
- [ x] I included all the necessary information above

Start by tracing how the electron config in build.json is converted into builder-effective-config.yaml and compare that with electron-builder's documented publish options. Reproduce the configuration pass-through failure, then verify that top-level or platform/target publish parameters reach electron-builder without breaking the existing mac, windows, and linux keys.

Written by the indexing model from the issue text.