refactor: rename modules to nixosModules

nixosModules/lanzaboote.nix

@@ -0,0 +1,23 @@
+{
+  self,
+  lib,
+  pkgs,
+  ...
+}:
+{
+  imports = [
+    self.inputs.lanzaboote.nixosModules.lanzaboote
+  ];
+
+  environment.systemPackages = [
+    # For debugging and troubleshooting Secure Boot.
+    pkgs.sbctl
+  ];
+
+  boot.loader.systemd-boot.enable = lib.mkForce false;
+
+  boot.lanzaboote = {
+    enable = true;
+    pkiBundle = "/var/lib/sbctl";
+  };
+}