feat: add settings menu

src/helpers/dom.ts

@@ -0,0 +1,8 @@
+export const prefetch = (url: string | null | undefined) => {
+  if (!url) return;
+  const link = document.createElement("link");
+  link.rel = "prefetch";
+  link.href = url;
+  link.onload = () => link.remove();
+  document.head.appendChild(link);
+};