v0.13.1

In the v0.13.0 release, we enabled error tracking in production with Sentry, which helped us pinpoint many bugs! We'll hopefully be stabilizing many edge cases with this and future releases.

975 additions and 507 deletions, thanks to our contributors (v0.13.0...v0.13.1).

Changelog

💅 The app window now appears from the background to warn you about exiting from an unsaved Fiddle (thanks, @erickzhao and @gerges)
🐛 Release list is now grabbed from electron/releases instead of the NPM registry, which had invalid versions. You can now load Fiddle versions back to Electron v0.24.0! (thanks, @erickzhao)
🐛 The UI now prevents edge behaviour involving the version selector and editor panes (thanks, @erickzhao)
🐛 Preload and stylesheet editors now work properly on the initial load (thanks, @erickzhao)
🐛 Refreshing the list of Electron versions from the settings pane now accurate retains Downloading progress (thanks, @erickzhao)
🐛 Fixed a race condition on startup that sometimes would make editors fail to listen for Unsaved files (thanks, @erickzhao)

📦 Internal: Sentry is now a runtime dependency (thanks, @felixrieseberg)
📦 Internal: Our automated backup list of Electron versions now creates pull requests (thanks, @malept)
🧪 Internal: Fiddle's test suite can now output a JSON report (thanks, @codebytere)