feat(x1): enhance xremap configuration

- Added user `harald` to the `input` group for proper permissions.
- Introduced device-specific configuration using `services.xremap.deviceNames`.
- Refined key remapping structure by aligning with `keymap` format.

systems/x86_64-linux/x1/xremap.nix

@@ -1,15 +1,26 @@
 # In /etc/nixos/configuration.nix
 { ... }:
 {
+  users.users.harald.extraGroups = [ "input" ];
+
   # Enable the xremap service
   services.xremap.enable = true;
   services.xremap.userName = "harald"; # Replace with your username
   services.xremap.serviceMode = "user"; # Run as user service, not system-wide
   services.xremap.withGnome = true;
 
+
+
+# Add a specific configuration block to select your keyboard(s) by name
+services.xremap.deviceNames = [
+  # Use the name found in the log output: "Hangsheng MonsGeek Keyboard System Control"
+  "Hangsheng MonsGeek Keyboard" 
+  # You can usually shorten the name slightly to match the device you want
+];
+
   # Define your remapping configuration using Nix's attribute set format
   services.xremap.config = {
-    global_remaps = [
+    keymap = [
       {
         remap = {
           # Map Alt+C (LeftAlt-C) to Ctrl+C (LeftControl-C)