The Sysl: Save Diagram Snapshot command saves the current diagram editor view as an SVG alongside the Sysl spec that it's rendering. The command can be triggered by a button on the diagram editor title bar.
On save, an information box is displayed with the filename and directory path.
Also:
- Fixed tests on Windows
- Fixed release job in CI (hopefully)
- Tidied up some issues with the package.json, command registration, and tests.