justfile: add alias to switch

Changed files
+2
+2
justfile
···
switch system="": sudo_cache
sudo nixos-rebuild -v -L switch --flake .#{{system}} --accept-flake-config --keep-going
# literally nixos-rebuild boot with a different name
defer system="": sudo_cache
sudo nixos-rebuild -v -L boot --flake .#{{system}} --accept-flake-config
···
switch system="": sudo_cache
sudo nixos-rebuild -v -L switch --flake .#{{system}} --accept-flake-config --keep-going
+
sw: switch
+
# literally nixos-rebuild boot with a different name
defer system="": sudo_cache
sudo nixos-rebuild -v -L boot --flake .#{{system}} --accept-flake-config