Implement modular Plasma taskbar pinning system

- Add modular pinning system using NixOS module options
- Each desktop module now defines its own pinned applications:
  * plasma.nix: konsole, dolphin, firefox, tigervnc
  * gaming.nix: steam, discord
  * office.nix: slack, signal, libreoffice-writer, libreoffice-calc
  * dev.nix: windsurf
  * media.nix: rustdesk
  * dnm.nix: tor-browser, kleopatra (moved from crypto.nix)
- Move Plasma config from user-specific to desktop module for consistency
- Rename crypto.nix to dnm.nix and update references
- All users with Plasma desktop get automatic taskbar pinning
- Applications only appear when their desktop modules are active

users/jsutter.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, pkgs-unstable, home-manager, ... }:
+{ config, pkgs, pkgs-unstable, home-manager, lib, ... }:
 
 {
 
@@ -134,6 +134,8 @@
           };
         };
       };
+
+
     };
   };
 }