hyprland: revert macbook blur disable (didn't help latency)

settings/hyprland.nix

@@ -117,9 +117,7 @@ in
             decoration = {
               rounding = 8;
               blur = {
-                # Haswell iGPU can't afford 3-pass blur every frame — the
+                enabled = true;
-                # blown frame budget shows up as pointer/input latency.
-                enabled = !isMacbook;
                 size = 1;
                 passes = 3;
               };