Prepared package for publishing

ref https://linear.app/ghost/issue/ENG-2401/custom-fonts

- we need to set the access to public so it's visible on npm when
  publishing

Author: daniellockyer

packages/custom-fonts/package.json

@@ -3,7 +3,9 @@
   "version": "0.0.0",
   "repository": "https://github.com/TryGhost/Ghost/tree/main/packages/custom-fonts",
   "author": "Ghost Foundation",
-  "private": true,
+  "publishConfig": {
+    "access": "public"
+  },
   "main": "./build/cjs/index.js",
   "module": "./build/esm/index.js",
   "types": "./build/types/index.d.ts",