Fix warnings

modules/desktop/wm.nix

@@ -163,10 +163,9 @@ in
             };
           };
 
-          gestures = {
-            workspace_swipe = true;
-            workspace_swipe_fingers = 3;
-          };
+          gesture = [
+            "3, horizontal, workspace"
+          ];
 
           animations = {
             enabled = true;