feat(gaming): unify and automate game window rules

Refactors 'modules/home/gaming.nix' to use a unified 'mkGameRules' function.
Applies full gaming rules (monitor 0, workspace gaming, immediate, fullscreen) to:
- Steam apps (class:^steam_app_\d+$)
- Gamescope, Lutris, Heroic
- Wine/Proton windows
Preserves manual overrides in the 'games' list.

modules/home/gaming.nix

@@ -8,22 +8,20 @@
     "Deadlock"
   ];
 
-  # Generate monitor rules for each game in the config
-  gameRules =
-    lib.flatten (map (game: [
-        "monitor 0, title:^(${game})$"
-        "workspace name:gaming, title:^(${game})$"
-        "fullscreen, title:^(${game})$"
-        "immediate, title:^(${game})$"
-        "stayfocused, title:^(${game})$"
-        
-        "monitor 0, class:^(${game})$"
-        "workspace name:gaming, class:^(${game})$"
-        "fullscreen, class:^(${game})$"
-        "immediate, class:^(${game})$"
-        "stayfocused, class:^(${game})$"
-      ])
-      games);
+  mkGameRules = selector: [
+    "monitor 0, ${selector}"
+    "workspace name:gaming, ${selector}"
+    "fullscreen, ${selector}"
+    "immediate, ${selector}"
+    "stayfocused, ${selector}"
+  ];
+
+  manualGameRules = lib.flatten (map (
+      game:
+        (mkGameRules "title:^(${game})$")
+        ++ (mkGameRules "class:^(${game})$")
+    )
+    games);
 in {
   home.packages = with pkgs; [
     protonup-qt
@@ -61,24 +59,20 @@ in {
 
     windowrulev2 =
       [
-        # --- STEAM RULES ---
+        # --- STEAM LAUNCHER RULES ---
         "workspace special:steam silent, class:^(steam)$"
         "noinitialfocus, class:^(steam)$"
         "suppressevent activate, class:^(steam)$"
-
-        # --- GAMING RULES ---
-        "fullscreen, class:^steam_app_\d+$"
-        "monitor 0, class:^steam_app_\d+$"
-        "workspace name:gaming, class:^steam_app_\d+$"
-        "immediate, class:^steam_app_\d+$"
-        "stayfocused, class:^steam_app_\d+$"
-
-        "fullscreen, class:^(gamescope)$"
-        "fullscreen, class:^(lutris)$"
-        "fullscreen, class:^(heroic)$"
-        "fullscreen, class:^wine-.*$"
-        "fullscreen, title:^Wine .*$"
       ]
-      ++ gameRules;
+      # --- AUTO-DETECTED GAMES ---
+      ++ (mkGameRules "class:^steam_app_\\d+$")
+      ++ (mkGameRules "class:^(gamescope)$")
+      ++ (mkGameRules "class:^(lutris)$")
+      ++ (mkGameRules "class:^(heroic)$")
+      ++ (mkGameRules "class:^wine-.*$")
+      ++ (mkGameRules "title:^Wine .*$")
+      # --- MANUAL GAMES ---
+      ++ manualGameRules;
   };
 }
+