Ok guys, wait
My problem is that i downloaded the Kali Core Template using the
“sudo qubes-dom0-update --enablerepo=qubes-templates-community-testing qubes-template-kali-core” command but when i am inside it and for example i do the command “sudo apt install kali-linux-default” it says that kali-linux-default dosent exist BUT in my /etc/apt/sources.list i only have deb.debian.org links but i dont know what to put to get kali linux repo inside it