restructure container directory

nixos/lavender/containers/nginx/default.nix

@@ -0,0 +1,13 @@
+{ ... }:
+
+{
+  # Nginx
+  virtualisation.oci-containers.containers."nginx" = {
+    autoStart = true;
+    image = "nginx";
+    volumes = [
+      "/srv/containers/nginx:/usr/share/nginx/html"
+    ];
+    ports = [ "8282:80" ];
+  };
+}