v0.3.2 - Electron big upgrade & fixes

Changes

Security fixes

• Migrate from electron 9.4.0 to 26.3.0

Other things

• Rewrite readme
• Upgrade widgetbot html embed script to latest (1.3.0)
• Upgrade transitive dependencies

Developer things

• Add electron-builder as developer dependency
• Pin node version using volta
• Change app name from "liveapp-mvp" to "liveapp-rtd" in package.json
• Regenerate package-lock.json
  • It was a v1 lockfile, now is a v3 one
  • Upgrade transitive dependencies