Tux: Rename submodules to more closely adhere to the dendritic pattern

modules/hosts/tux/networking.nix

@@ -1,8 +1,8 @@
-{inputs, ...}: {
-	flake.modules.nixos.tux = {
-		imports = with inputs.self.modules.nixos; [
-			networkmanager
-		];
-		networking.hostName = "tux";
-	};
+{ inputs, ... }: {
+  flake.modules.nixos.tux-networking = {
+    imports = with inputs.self.modules.nixos; [
+      networkmanager
+    ];
+    networking.hostName = "tux";
+  };
 }