Add possibility to Self update

[hacknus]

The user can check for updates and the application will automatically download the latest release from github.

[zimward]

I would like to have this under feature flag, so it can be disabled if packaged to prevent nagging the user with an update that might not even work as they should rely on the package manager in that case.

[hacknus]

I would like to have this under feature flag, so it can be disabled if packaged to prevent nagging the user with an update that might not even work as they should rely on the package manager in that case.

good point! I'll put it in as a feature that is enabled by default for the automatically built binary releases.

[hacknus]

@zimward should I make the self_update feature the default or should we just enable it for building binaries?
EDIT it is now implemented as the default feature, but I can change it easily if you want. I don't really have an opinion on it.

[zimward]

I think having it as a non-default makes more sense as that would also make packaging easier as the maintainers don't need to look into build-flags. Only features that make sense for packaged builds should be default IMHO, as this is the default method of distribution outside of Windows and maybe MacOS (idk). Everyone who isn't using a package manager is probably using the CI binaries.

[hacknus]

thanks! done!