feat: add tw variants

src/app.tsx

@@ -1,12 +1,13 @@
 import { useSignal } from "@preact/signals";
 import "preact/debug";
 import classes from "./app.module.scss";
+import Button from "./components/ui/Button";
 export function App() {
   const counter = useSignal(0);
   return (
     <>
       <h1 class={classes.text}>Hello, World!</h1>
-      <button onClick={() => counter.value++}>Count: {counter.value}</button>
+      <Button onClick={() => counter.value++}>Count: {counter.value}</Button>
     </>
   );
 }