standalone builds for other platforms

The VS Code plugin bundles node-pty, which includes binaries for x64 and ARM for all of mac/win/linux.

For the Standalone app, we distribute only the most popular architecture:
- MacOS Apple Silicon
- Win x64
- Linux x64

If you want binaries for a different platform, you can clone this repo and run `pnpm install && pnpm build:standalone` and it will build whatever you need.

If you want us distirbute binaries for a standalone platform that we aren't right now, add a thumbs-up to the appropriate comment below.