✨ Moved yubikey config to security dir and rename

shared/modules/default.nix

@@ -17,7 +17,7 @@
     ./office.nix
     ./hyprland
     ./sddm.nix
-    ./security.nix
+    ./security
     ./shell.nix
     ./social.nix
     ./users.nix

shared/modules/security/default.nix

@@ -0,0 +1,5 @@
+{
+  imports = [
+    ./yubikey.nix
+  ];
+}

shared/modules/security/yubikey.nix

@@ -1,9 +1,10 @@
+# Yubikey config: https://nixos.wiki/wiki/Yubikey#pam_u2f
 { pkgs, ... }:
 
 {
   environment.systemPackages = with pkgs; [
     gnupg
-    yubioath-flutter
+    yubioath-flutter # GUI
   ];
 
   programs.gnupg.agent.enable = true;