Electron refactor

We should refactor the modloader to run using electron.

This means we run the app.asar ourself, and ship the modloader exe as an electron exe.

This would allow us to easily add additional UI / pages, intercept files with ease, and so much more.

Primarily this will require a refactor of the intercept code, but also all of the pre-checks for exe locations etc will likely need to be assured works.