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/core/network.nix

@@ -28,10 +28,22 @@ in {
         59011
         8080
       ];
+      allowedTCPPortRanges = [
+        {
+          from = 1714;
+          to = 1764;
+        }
+      ];
       allowedUDPPorts = [
         59010
         59011
       ];
+      allowedUDPPortRanges = [
+        {
+          from = 1714;
+          to = 1764;
+        }
+      ];
     };
   };
 }