start move steam to seperate module

modules/games/steam.nix

@@ -0,0 +1,18 @@
+{ lib, config, ... }:
+{
+	options.modules.games.steam = {
+		enable = lib.mkEnableOption "enable steam";
+	};
+	config = lib.mkIf config.modules.games.steam.enable {
+		programs = {
+			steam = {
+				enable = true;
+				remotePlay.openFirewall = true;
+				gamescopeSession.enable = true;
+				dedicatedServer.openFirewall = true;
+			};
+
+			gamemode.enable = true;
+		};
+	};
+}