refactor: move syncthing to default

home/features/desktop/default.nix

@@ -3,8 +3,9 @@
     ./aerospace.nix
     ./fonts.nix
     ./ghostty.nix
-    ./syncthing.nix
     ./yubikey.nix
     ./zen-browser.nix
   ];
+
+  services.syncthing.enable = true;
 }

home/features/desktop/syncthing.nix

@@ -1,3 +0,0 @@
-{
-  services.syncthing.enable = true;
-}