Converted btop from nixosModule to homeModule

modules/home/apps/btop/default.nix

@@ -0,0 +1,25 @@
+{
+  config,
+  lib,
+  namespace,
+  ...
+}: let
+  inherit (lib) mkIf mkEnableOption;
+
+  cfg = config.${namespace}.apps.btop;
+in {
+  options.${namespace}.apps.btop = {
+    enable = mkEnableOption "btop";
+  };
+
+  config = mkIf cfg.enable {
+    programs.btop = {
+      enable = true;
+      settings = {
+        theme_background = false;
+        vim_keys = true;
+        color_theme = "gruvbox_dark_v2";
+      };
+    };
+  };
+}