feat: added vue examples

This PR includes Vue examples, in particular:
- Vue Spa
- Vue Spa + Router
- Vue using Sever Side Rendering with Express.js.

Also updated the general Readme.

vue/spa/src/views/AboutView.vue

@@ -0,0 +1,15 @@
+<template>
+  <div class="about">
+    <h1>This is an about page</h1>
+  </div>
+</template>
+
+<style>
+@media (min-width: 1024px) {
+  .about {
+    min-height: 100vh;
+    display: flex;
+    align-items: center;
+  }
+}
+</style>

vue/spa/src/views/HomeView.vue

@@ -0,0 +1,9 @@
+<script setup lang="ts">
+import TheWelcome from '../components/TheWelcome.vue'
+</script>
+
+<template>
+  <main>
+    <TheWelcome />
+  </main>
+</template>