Deleted all old things, added Vue skeleton

src/App.vue

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+<template>
+    <h1>Hello Vue!</h1>
+</template>
+
+<script>
+export default {
+
+}
+</script>

src/assets/tailwind.css

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+@tailwind base;
+@tailwind components;
+@tailwind utilities;

src/main.js

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+import { createApp } from "vue";
+import App from "./App.vue";
+import "./assets/tailwind.css";
+
+createApp(App).mount("#app");