Add initial authentication system

src/components/HelloWorld.vue

@@ -0,0 +1,34 @@
+<template>
+  <div class="hello">
+    <h1>This is homepage</h1>
+    <h2>{{ msg }}</h2>
+  </div>
+</template>
+
+<script>
+export default {
+  data() {
+    return {
+      msg: "Hello World!",
+    };
+  },
+};
+</script>
+    <!-- Add "scoped" attribute to limit CSS to this component only -->
+<style scoped>
+h1,
+h2 {
+  font-weight: normal;
+}
+ul {
+  list-style-type: none;
+  padding: 0;
+}
+li {
+  display: inline-block;
+  margin: 0 10px;
+}
+a {
+  color: #42b983;
+}
+</style>