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/zed/user-settings/agent.nix

@@ -1,6 +1,5 @@
 _: {
   programs.zed-editor.userSettings.agent = {
-    always_allow_tool_actions = true;
     default_profile = "ask";
     default_model = {
       provider = "Cerebras PAUG";