Add btop configuration

home-manager/modules/shell/btop.nix

@@ -0,0 +1,14 @@
+{ ... }:
+{
+    programs.btop = {
+        enable = true;
+        
+        settings = {
+            color_theme = "Dracula";
+            theme_background = false;
+            truecolor = true;
+            shown_boxes = "proc cpu mem net gpu0";
+            update_ms = 100;
+        };
+    };
+}

home-manager/modules/shell/default.nix

@@ -4,5 +4,6 @@
         ./zsh.nix
         ./starship.nix
         ./konsole.nix
+        ./btop.nix
     ];
 }