Custom Electron Header Mirror

Purpose:

Allows patching electron headers(if necessary) before they're fetched by yarn
Electron's header distribution has been killing our builds lately by severing our connection mid-download. Kinda banking on github being more reliable 😬

Usage

This is intended to replace the official electron header mirror. Set the disturl when installing packages to https://github.com/gitkraken/custom-electron-headers/raw/dist

This doesn't include all electron versions, just the ones we're using

Adding new header versions

probably doesn't work on windows, not sure about mac

set an env var ELECTRON_VERSION to the intended version
run gen.sh
commit that