Create a "proper" package for Cassowary

[eylenburg]

Is your feature request related to a problem? Please describe. I think currently the installation is a bit complicated for some users, as you first need to install the right dependencies (only given for Arch, so the package names on other distributions differ for python, freerdp etc.) and then you need to download a file from the Github releases page and install it with pip. It then also doesn't appear in your package manager or KDE Discover/GNOME Software/Ubuntu Store/Yast so it is not clear to users how they can update or remove Cassowary.

Describe the solution you'd like It would be great to have a normal package, e.g. RPM + DEB repos, Snap, Flatpak, AppImage, whatever works best for this kind of application. This way users can install Cassowary in a similar way to their other applications and update it through their package manager.

Describe alternatives you've considered Improve documentation to clearly show installation steps for other distributions (Ubuntu/Mint, OpenSUSE, Fedora, ...) as well as how to update and uninstall Cassowary.