move some graphics stuff into individual modules/files

hosts/monosodium-glutamate-g/configuration.nix

@@ -6,9 +6,11 @@
     ./hardware-configuration.nix
     ../../common.nix
     ../../modules
+    ./modules
   ];
 
   jade = {
+    hwKey.pamAuth.enable = true;
     desktop = {
       syncthing.enable = true;
       kdeconnect.enable = true;
@@ -57,9 +59,6 @@
     # TODO: clean up.
     zenstates
     zenmonitor
-    nvtop-amd
-    radeontop
-    rgp
     tea
     blender-hip
   ];