This is a small release with only minor changes in preperation for a Flathub release. Changes: - An appstream metadata file was added and is installed to the metainfo directory - `gtk4-update-icon-cache` instead of the gtk3 variant is used during post-install - The application id was changed to `org.pipewire.Helvum` - Bash build scripts were removed and their work is done directly via meson instead In addition, the upstream URL has changed to https://gitlab.freedesktop.org/pipewire/helvum