feat(keepassxc): add enable option

home/modules/keepassxc/default.nix

@@ -1,8 +1,21 @@
 {
-  programs.keepassxc = {
-    enable = true;
-    settings = {
-      Browser.Enabled = true;
+  config,
+  lib,
+  ...
+}:
+
+let
+  cfg = config.keepassxc;
+in
+{
+  options.keepassxc.enable = lib.mkEnableOption "KeePassXC";
+
+  config = lib.mkIf cfg.enable {
+    programs.keepassxc = {
+      enable = true;
+      settings = {
+        Browser.Enabled = true;
+      };
     };
   };
 }