feat: move amdgpu-specific config to its own role, since i now also have nvidia systems

modules/core/hardware.nix

@@ -1,18 +1,3 @@
 { pkgs, ... }:
 {  
-  hardware = {
-    graphics = {
-      enable = true;
-    };
-    enableRedistributableFirmware = true;
-    opengl = {
-      extraPackages = with pkgs; [
-        amdvlk
-      ];
-      # For 32 bit applications as well
-      extraPackages32 = with pkgs; [
-        driversi686Linux.amdvlk
-      ];
-    };
-  };
 }