New review comment by menaechmi on void-packages repository

https://github.com/void-linux/void-packages/pull/42051#discussion_r1096925220

Comment:
> And it should be `vinstall` not `vcopy`.

It cannot be a vinstall as the new nextcloud-kwallet.desktop file doesn't exist until this point, because the kwallet is a void-made wrapper not something from upsteam (see #26774). The do_install should be a little neater for this, but let me know if you'd like another solution.