Polish "Delete local branches and remotes"

[joaomoreno]

There doesn't seem to be any in-widget progress reporting while quick open is loading the branches to delete:

After cleaning branches, I ended up here, since I have no remotes to cleanup:

I'd argue this shouldn't show if there are no remotes to clean.

Also, general question: why is this action mixing up branches and remotes? Shouldn't we split this into two actions?