gaufre: better handle the marianne font subsetting

this should be easier to handle if the one doing it is not… me. Still
not that great but better than nothing!

website/package.json

@@ -10,6 +10,7 @@
     "dev": "astro dev",
     "start": "node ./server.mjs",
     "build-backgrounds": "node ./bin/build-services-backgrounds.mjs",
+    "gaufre-glyphhanger-cmd": "node ./bin/gaufre-font-cmd.mjs",
     "build": "astro check && npm run build-backgrounds && astro build",
     "preview": "astro preview",
     "astro": "astro"