Version 2.3.0

• Windows crash fix: fixed an immediate crash when starting an upload with certain regional settings, affecting both the CLI and GUI (#5), thanks @0xDefton3s
• exFAT volume images: upload files and directories directly from a raw exFAT volume image, in the app and on the command line, without mounting it or extracting files to disk. File names and modification times are preserved, and files already on the server are skipped on re-runs.
• The app's buffer meter now changes gradually from red when empty, through yellow, to green when full.
• macOS downloads are now ZIP files, signed with Developer ID and notarized by Apple.