web: initial commit with Vue starting point.

web/src/App.vue

@@ -0,0 +1,27 @@
+<template>
+  <img alt="Vue logo" src="./assets/logo.png" />
+  <HelloWorld msg="Welcome to Your Vue.js + TypeScript App" />
+</template>
+
+<script lang="ts">
+import { defineComponent } from "vue";
+import HelloWorld from "./components/HelloWorld.vue";
+
+export default defineComponent({
+  name: "App",
+  components: {
+    HelloWorld,
+  },
+});
+</script>
+
+<style lang="scss">
+#app {
+  font-family: Avenir, Helvetica, Arial, sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  text-align: center;
+  color: #2c3e50;
+  margin-top: 60px;
+}
+</style>