rofi: switch to home-manager options with catppuccin macchiato theme

Replace manual xdg.configFile symlinks and fetchFromGitHub theme fetching
with programs.rofi options and the catppuccin/nix flake module. Also removes
unused pywal module from magicman.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

home/hyprland/default.nix

@@ -73,7 +73,6 @@ in
       [
         dunst
         hyprpaper
-        rofi
         slurp
         swww
         waybar
@@ -261,8 +260,9 @@ in
           # term
           "$mainMod,Return,exec,$term"
           # rofi
-          "$mainMod,D,exec,rofi-launcher"
+          "$mainMod,D,exec,rofi -show drun"
           "$mainMod,P,exec,rofi-rbw"
+          "$mainMod,E,exec,rofi -show emoji"
           # hyprlock
           "$shiftMainMod,l,exec,${pkgs.hyprlock}/bin/hyprlock"
           # hyprland