Add automated checks for desktop app runtime #233

- Add automation script for building, packaging, installing, executing
  and verifying Electron distrubtions across macOS, Ubuntu and Windows.
- Add GitHub workflow to run the script to test distributions using the
  script.
- Update README with new workflow status badge.
- Add application initialization log to desktop applications to be able
  to test against crashes before application initialization.

scripts/check-desktop-runtime-errors/utils/platform.js

@@ -0,0 +1,9 @@
+import { platform } from 'os';
+
+export const SUPPORTED_PLATFORMS = {
+  MAC: 'darwin',
+  LINUX: 'linux',
+  WINDOWS: 'win32',
+};
+
+export const CURRENT_PLATFORM = platform();