carbon: refactor carbon modules

nix/nixosModules/named/carbon/default.nix

@@ -3,19 +3,18 @@
     ./hardware-configuration.nix # generated
 
     ./battery.nix
+
     ./audio.nix
-    ./networking.nix
-    ./bluetooth.nix
+    ./connectivity.nix
+    ./input.nix
+
     ./display.nix
-    ./scanner.nix
+    ./gui.nix
 
     ./restic.nix
     ./fs.nix
 
     ./packages.nix
-
-    ./gui.nix
-
     ./db.nix # M1 BDD course
   ];
 
@@ -66,7 +65,5 @@
     restic_backblaze_env.file = ../../../secrets/restic_backblaze_env.age;
   };
 
-  hardware.keyboard.zsa.enable = true;
-
   services.fwupd.enable = true;
 }