And have the corresponding dependency to kali-wallpapers-2020.4 in
kali-themes-common too to ensure the symlink points to an existing file.
Gbp-Dch: Full
Also move the grub theme to /usr/share/grub/themes/kali/ as installing
files in /boot/ is problematic on arm where /boot is often a vfat
partition that doesn't support hardlinks as required by dpkg.
Gbp-Dch: Full