set default font via config

src/inc/routes/static.mjs

@@ -23,6 +23,11 @@ export default (router, tpl) => {
     route: /^\/s\/koepfe\//
   });
 
+  router.static({
+    dir: cfg.paths.fonts,
+    route: /^\/s\/fonts\//
+  });
+
   router.static({
     dir: path.join(path.resolve(), 'node_modules/@ruffle-rs/ruffle'),
     route: /^\/s\/ruffle\//