meta: Various gaming fixes

- Fix Vortex Mod Manager by giving it access to /mnt/Storage (Bad, but
  well)
- Add package: razer-cli
- Tell gamemode to put my GPU in performance mode
- Tell gamemode to enable or disable keyboard backlight
- Switch the miku kernel to Zen

modules/services/gamemode/default.nix

@@ -1,4 +1,4 @@
-{ config, lib, ... }:
+{ config, lib, pkgs, ... }:
 
 let
   cfg = config.ptw.services.gamemode;
@@ -23,6 +23,24 @@ in {
           ioprio = 0;
           inhibit_screensaver = 1;
         };
+
+        gpu = {
+          amd_performance_level = "high";
+        };
+
+        custom = let
+          razerBrightnessStartScript = pkgs.writeShellScriptBin "razer-brightness-start.sh" ''
+            ${pkgs.razer-cli}/bin/razer-cli -d "Razer BlackWidow Ultimate 2013" -b 1
+            ${pkgs.razer-cli}/bin/razer-cli -d "Razer Tartarus V2" -b 50
+          '';
+          razerBrightnessStopScript = pkgs.writeShellScriptBin "razer-brightness-stop.sh" ''
+            ${pkgs.razer-cli}/bin/razer-cli -d "Razer BlackWidow Ultimate 2013" -b 0
+            ${pkgs.razer-cli}/bin/razer-cli -d "Razer Tartarus V2" -b 0
+          '';
+        in {
+          start = ''${razerBrightnessStartScript}/bin/razer-brightness-start.sh'';
+          end = ''${razerBrightnessStopScript}/bin/razer-brightness-stop.sh'';
+        };
       };
     };
   };