Add portable Windows desktop downloads and release uploads

desktop/navigation.cjs

@@ -0,0 +1,17 @@
+const SITE_URL = "https://minegeo.vercel.app";
+function isInternal(value) {
+  try {
+    return new URL(value).origin === SITE_URL;
+  } catch {
+    return false;
+  }
+}
+function isExternal(value) {
+  try {
+    const url = new URL(value);
+    return url.protocol === "https:" && !url.username && !url.password;
+  } catch {
+    return false;
+  }
+}
+module.exports = { SITE_URL, isInternal, isExternal };