Upgrade to Debian 12, with minor updates

- Upgraded project to Debian 12
- .vscode added to .gitignore
- LICENSE formatting updated
- Copyright refreshed for 2023
- Added Libvirt settings
- Refactored packages to inventory-specific
- Committed missing autostart-scripts

Vagrantfile

@@ -1,8 +1,14 @@
 Vagrant.configure("2") do |config|
-  config.vm.box = "debian/bullseye64"
+  config.vm.box = "debian/bookworm64"
   config.vm.network "private_network", type: "dhcp"
   config.vm.synced_folder ".", "/vagrant", disabled: true
 
+  # Libvrit settings
+  config.vm.provider :libvirt do |domain|
+    domain.memory = 4096
+    domain.cpus = 2
+  end
+
   # Boot with a GUI in VirtualBox
   config.vm.provider "virtualbox" do |vbox|
     vbox.customize ["modifyvm", :id, "--vram", "128",