sway: add monitor config for Northstar

hosts/Northstar/home.nix

@@ -1 +1,7 @@
-{...}: {wayland.windowManager.hyprland.settings.monitor = ["eDP-1,preferred,1920x0,1.50"];}
+{...}: {
+  wayland.windowManager.sway.config.output = {
+    "eDP-1" = {
+      scale = "1.5";
+    };
+  };
+}