Electron showErrorBox tutorial

Use the Electron dialog showErrorBox to display an error message to the user. Not much to it:

1. Call it on the main process.
2. Require dialog.
3. Call showErrorBox() with a title and a message.

const { dialog } = require('electron')

dialog.showErrorBox('Oops! Something went wrong!', 'Help us improve your experience by sending an error report')

This is what the message will look like on macOS in Electorn tutorial app:

Electron error message

The file is called dialog.js in the github repo if you want to look at the code.