[hyprland] Run eww only once.

system/hosts/altair/drew.nix

@@ -31,8 +31,7 @@ in
   };
 
   # Set up eww here because it's based on the monitor configuration
-  # Eww is idempotent, so it's fine to just run it on every reload to make sure things are open
-  wayland.windowManager.hyprland.settings.exec = [
-    "eww open-many primary-statusbar secondary-statusbar launcher"
+  wayland.windowManager.hyprland.settings.exec-once = [
+    "sleep 2 && eww open-many primary-statusbar secondary-statusbar launcher"
   ];
 }