feat(btop): autostart btop on misc monitor

note: may not work on very small monitor. needs to auto change to `btm`
if conditions are met.

config.nix

@@ -26,6 +26,10 @@
           update = "sudo nixos-rebuild switch --flake ~/.config/nixos/#hakase";
         };
       };
+      btop = {
+        autostart = true;
+        monitor = "DP-1";
+      };
       hyprland = {
         monitors = [
           "DP-1,highres@165,0x1080,1,vrr,0,bitdepth,10,cm,hdr,sdrbrightness,1.3"
@@ -88,6 +92,10 @@
           update = "sudo nixos-rebuild switch --flake ~/.config/nixos/#macbook";
         };
       };
+      btop = {
+        autostart = false;
+        monitor = "eDP-1";
+      };
       hyprland = {
         # M1 Pro/Max/Air screens are usually built-in eDP-1.
         # HiDPI scale 2.0 is safe for Retina.