feat(newsboat): add save directory

configs/newsboat.nix

@@ -1,6 +1,8 @@
 { pkgs, ... }:
+let newsboat-home = "~/cloud/syncthing/common/newsboat";
+in
 {
-  environment.shellAliases.newsboat = "${pkgs.newsboat}/bin/newsboat -u ~/cloud/syncthing/common/urls";
+  environment.shellAliases.newsboat = "${pkgs.newsboat}/bin/newsboat -u ${newsboat-home}/urls";
 
   home-manager.users.me = {
     programs.newsboat = {
@@ -27,6 +29,8 @@
         bind-key U show-urls
         bind-key x pb-delete
 
+        save-path ${newsboat-home}/saved/
+
         color listnormal cyan default
         color listfocus black yellow standout bold
         color listnormal_unread blue default