ssh: rename from openssh, update nixos module name

common/default.nix

@@ -8,10 +8,10 @@
     ./misc.nix
     ./nginx.nix
     ./nix.nix
-    ./openssh.nix
     ./packages.nix
     ./sanoid.nix
     ./security.nix
+    ./ssh.nix
     ./steam.nix
   ];
-}
+}

common/ssh.nix

@@ -1,11 +1,11 @@
 { config, lib, pkgs, ... }:
 
 {
-  services.openssh = {
+  programs.ssh = {
     enable = true;
     settings = {
       PasswordAuthentication = false;
       PermitRootLogin = "no";
     };
   };
-}
+}