Draft: catppuccin: add to profile

Related Discourse thread: https://discourse.nixos.org/t/catppuccin-nix-the-soothing-pastel-theme-but-for-nix/42915/7

profiles/light/catppuccin.nix

+{ inputs, ... }:
+
+{
+  imports = [ inputs.catppuccin.homeManagerModules.catppuccin ];
+
+  catppuccin = {
+    enable = true;
+    flavour = "mocha";
+  };
+}