Helia 0.8.2

Source only: this release has no installer files. Helia installers are sold at https://12hobbies.studio/projects/helia/, or you can build it from source: https://qisback.github.io/helia/getting-started/build-from-source/

Pre-1.0 early software: expect rough edges.

• The store sign-in, licence keys and paid downloads are no longer part of the public source. They live in a separate closed add-on that only the installers from the store include, so the public source tree contains no store code and builds without it.
• Nothing changes in an installer from the store: the same About > Updates settings and the same helia licence command.
• A copy built from source now says when a newer version exists and links to the Helia page. Before, it could not even tell you, because the signed update information was refused as a whole.
• The About page and helia --version name the update backend when an installer includes one.
• Fixed: attaching the macOS installer to a release no longer stops after the upload.