Configure vite to copy from src to dist (#2)

* nit

* move

* direct copy lib dir

* nit

* disable treeshake

src/scripts/ui/spinner.js

@@ -0,0 +1,9 @@
+import { addStylesheet } from "../utils.js";
+
+addStylesheet(import.meta.url);
+
+export function createSpinner() {
+	const div = document.createElement("div");
+	div.innerHTML = `<div class="lds-ring"><div></div><div></div><div></div><div></div></div>`;
+	return div.firstElementChild;
+}