Enable KDE Connect and refresh dependencies

- Turn on KDE Connect for desktop and laptop configurations
- Add allowed TCP and UDP port ranges (1714‑1764) for KDE Connect
- Update flake.lock with newer revisions, hashes, and add secondary
  inputs
- Set nh program package explicitly
- Adjust GTK settings for dark theme handling
- Disable KDE Connect indicator in service config
- Refactor noctalia plugins to use a shared source URL, add kde‑connect
  plugin, bump version
- Add KDE Connect widget to the right bar
- Remove always_allow_tool_actions from Zed agent settings

modules/home/noctalia/settings/bar/widgets/right.nix

@@ -27,6 +27,9 @@
       showUnreadBadge = true;
       unreadBadgeColor = "primary";
     }
+    {
+      id = "plugin:kde-connect";
+    }
     {
       id = "Bluetooth";
       displayMode = "onhover";