refactor: reorder system defaults after activation script

Moved the system defaults configuration block to follow the system activation script definition. This change organizes the code better, improving readability and maintainability.

modules/darwin/system/interface/default.nix

@@ -10,9 +10,6 @@ in
   };
 
   config = mkIf cfg.enable {
-    system.defaults = {
-      dock.autohide = true;
-
     system.activationScripts.applications.text = let
       env = pkgs.buildEnv {
         name = "system-applications";
@@ -20,19 +17,22 @@ in
         pathsToLink = "/Applications";
       };
     in
-      pkgs.lib.mkForce ''
+      lib.mkForce ''
       # Set up applications.
       echo "setting up /Applications..." >&2
       rm -rf /Applications/Nix\ Apps
       mkdir -p /Applications/Nix\ Apps
       find ${env}/Applications -maxdepth 1 -type l -exec readlink '{}' + |
-      while read src; do
+      while read -r src; do
         app_name=$(basename "$src")
         echo "copying $src" >&2
         ${pkgs.mkalias}/bin/mkalias "$src" "/Applications/Nix Apps/$app_name"
       done
           '';
 
+    system.defaults = {
+      dock.autohide = true;
+
       finder = {
         AppleShowAllExtensions = true;
         FXEnableExtensionChangeWarning = false;