style(desktop): reformat nix code and simplify module logic

Refactor `modules/desktop/options.nix` to improve code readability through
consistent indentation and whitespace management. Simplified the
conditional logic for `home-manager.extraSpecialArgs` to remove
unnecessary complexity.

Clean up host configurations by removing commented-out code, removing
unnecessary whitespace, and flattening nested attribute sets into
single-line declarations where appropriate.

modules/hosts/uConsole/home.nix

@@ -7,9 +7,7 @@
 
       chiasson.users.extraModules.olivier = [
         {
-          chiasson.home = {
-            hardware.uconsoleGamepad.enable = true;
-          };
+          chiasson.home.hardware.uconsoleGamepad.enable = true;
         }
       ];
     };