homeFilesFromStringAttrs: add brackets to fix binding

flake.nix

@@ -27,6 +27,6 @@
         text = y;
         executable = exec;
       };
-    }) builtins.attrValues attrs) ) builtins.attrNames attrs;
+    }) (builtins.attrValues attrs)) ) (builtins.attrNames attrs);
   };
 }