bluetuith: use j and k to navigate up and down

https://github.com/darkhz/bluetuith/issues/62#issuecomment-2141669880
https://darkhz.github.io/bluetuith/Configuration.html

lib/nixos/home-manager/desktop.nix

@@ -8,6 +8,7 @@
   imports = [
     ./modules/alacritty.nix
     ./modules/copyq.nix
+    ./modules/desktop/bluetuith.nix
     ./modules/espanso.nix
     ./modules/gtk.nix
     ./modules/feh.nix

lib/nixos/home-manager/modules/desktop/bluetuith.nix

@@ -0,0 +1,19 @@
+{
+  xdg.configFile."bluetuith/bluetuith.conf" = {
+    text = ''
+      {
+        adapter: ""
+        adapter-states: ""
+        connect-bdaddr: ""
+        gsm-apn: ""
+        gsm-number: ""
+        keybindings: {
+          NavigateDown: j
+          NavigateUp: k
+        }
+        receive-dir: ""
+        theme: {}
+      }
+    '';
+  };
+}