fix(just): add libvirt package to setup-virtualization (ublue-os#1549)

* fix: add libvirt package into install
upstream removed libvirt as a dependency for virt-manager

* chore: update information text about VFIO

Author: HikariKnight

system_files/desktop/shared/usr/share/ublue-os/just/84-bazzite-virt.just

@@ -43,7 +43,7 @@ setup-virtualization ACTION="":
     if [[ "${OPTION,,}" =~ (^enable[[:space:]]virtualization|virt-on) ]]; then
         if ! rpm -q virt-manager | grep -P "^virt-manager-" 1>/dev/null; then
           echo "Installing QEMU and virt-manager..."
-          rpm-ostree install -y virt-manager edk2-ovmf qemu
+          rpm-ostree install -y virt-manager edk2-ovmf qemu libvirt
           rpm-ostree kargs \
           --append-if-missing="kvm.ignore_msrs=1" \
           --append-if-missing="kvm.report_ignored_msrs=0"
@@ -61,7 +61,7 @@ setup-virtualization ACTION="":
         sudo systemctl disable --now bazzite-libvirtd-setup.service 2> /dev/null
       fi
       echo "Removing QEMU and virt-manager..."
-      rpm-ostree remove -y virt-manager edk2-ovmf qemu
+      rpm-ostree remove -y virt-manager edk2-ovmf qemu libvirt
       rpm-ostree kargs \
       --delete-if-present="kvm.ignore_msrs=1" \
       --delete-if-present="kvm.report_ignored_msrs=0"
@@ -95,9 +95,18 @@ setup-virtualization ACTION="":
             --append-if-missing="vfio_pci.disable_vga=1"
           echo "VFIO will be enabled on next boot, make sure you enable IOMMU, VT-d or AMD-v in your BIOS!"
           echo "Please understand that since this is such a niche use case, support will be very limited!"
-          echo "To add your unused/second GPU device ids to the vfio driver by running"
+          echo ""
+          echo "${b}Systems with multiple GPUs${n}"
+          echo "Bind your unused/second GPU device ids to the vfio driver by running"
           echo 'rpm-ostree kargs --append-if-missing="vfio-pci.ids=xxxx:yyyy,xxxx:yyzz"'
-          echo "NOTE: Your second GPU will not be usable by the host after you do this!"
+          echo "You will require a $(Urllink "https://www.amazon.com/s?k=hdmi+displayport+dummy+plug" "Dummy HDMI/DisplayPort plug (Ghost Adapter)") or hook the GPU"
+          echo "to a separate monitor input in order to turn the GPU on when starting the VM."
+          echo "NOTE: Your second GPU will not be usable by the host after you bind it to the vfio driver!"
+          echo ""
+          echo "${b}Systems with 1 GPU${n}"
+          echo "Once rebooted you can continue setting up whatever scripts and hooks you need"
+          echo "to get Single GPU passthrough working, however ${u}you will be on your own${n}."
+          echo "${b}Do not ask for support for setting up Single GPU Passthrough, we can not help you!${n}"
         fi
       fi
     elif [[ "${OPTION,,}" =~ (^disable[[:space:]]vfio|vfio-off) ]]; then