feat: nvidia logind seatd gamescope config update

Nvidia: added Dynamic Boost and fixed PRIME BusIDs
Gamescope: added capSysNice definition
Fcitx5: change names to resolve eval warning
Logind: Delayed processing of power key press (600ms)

nixos/services/avahi.service.nix

@@ -1,7 +1,7 @@
 {...}: {
   services.avahi = {
     enable = true;
-    nssmdns = true;
+    nssmdns4 = true;
     openFirewall = true;
   };
 }

nixos/services/laptop.preset.nix

@@ -7,5 +7,8 @@
     ./avahi.service.nix
     ./printing.service.nix
     ./tailscale.service.nix
+    ./power_management.service.nix
+    ./seatd.service.nix
+    ./logind.service.nix
   ];
 }

nixos/services/logind.service.nix

@@ -0,0 +1,15 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}: {
+  services.logind.extraConfig = ''
+    # don't shutdown in short press
+    HandlePowerKey=ignore
+    IdleAction=suspend
+
+    # Milliseconds
+    IdleActionSec=600
+  '';
+}

nixos/services/seatd.service.nix

@@ -0,0 +1,10 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}: {
+  services.seatd = {
+    enable = true;
+  };
+}