[keet-bin] fails to start

I get the same error as [this comment](https://aur.archlinux.org/packages/keet-bin#comment-962272) on AUR: ``` This doesn't look like a squashfs image. Cannot mount AppImage, please check your FUSE setup. You might still be able to extract the contents of this AppImage if you run it with the --appimage-extract option. See https://github.com/AppImage/AppImageKit/wiki/FUSE for more information open dir error: No such file or directory ```