rearrange files

common/default.nix

@@ -0,0 +1,9 @@
+{
+  imports = [
+    ./users
+    ./environment.nix
+    ./nginx.nix
+    ./openssh.nix
+    ./security.nix
+  ];
+}

common/fonts.nix

@@ -1,7 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-{
-  fonts.packages = with pkgs; [
-    corefonts
-  ];
-}

common/steam.nix

@@ -1,11 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-{
-  programs.steam = {
-    enable = true;
-    remotePlay.openFirewall = true;
-    dedicatedServer.openFirewall = true;
-  };
-
-  services.joycond.enable = true;
-}