revert(arty): remove glow style workaround — use GLAMOUR_STYLE in zshenv

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

bin/arty

@@ -1125,12 +1125,8 @@ show_notes() {
   fi
 
   echo
-  local glow_style="auto"
-  local glow_style_file="$HOME/.config/glow/nord.json"
-  [[ -f "$glow_style_file" ]] && glow_style="$glow_style_file"
-
   if command -v glow &>/dev/null; then
-    printf '%s\n' "$md" | glow --style "$glow_style" -
+    printf '%s\n' "$md" | glow -
   elif command -v mdcat &>/dev/null; then
     printf '%s\n' "$md" | mdcat
   elif command -v python3 &>/dev/null; then