feat: migrate backend to cosmiconfig

backend/backend/config/f-u/about-pages/privacy.js

@@ -0,0 +1,15 @@
+// @ts-check
+import {markdown} from '../../default/tools/markdown.js';
+
+/** @type {import('@openstapps/core').SCAboutPage} */
+export const privacy = {
+  title: 'Datenschutz',
+  content: [await markdown('./privacy.md', import.meta.url)],
+  translations: {
+    en: {
+      title: 'Privacy Policy',
+    },
+  },
+};
+
+export default privacy;