Some progress on porting frontend

frontend-vue/src/App.vue

@@ -1,22 +1,11 @@
 <script setup lang="ts">
 import { RouterLink, RouterView } from 'vue-router'
 import HelloWorld from './components/HelloWorld.vue'
+import Header from '@/components/global/Header.vue'
 </script>
 
 <template>
-  <header>
-    <img alt="Vue logo" class="logo" src="@/assets/logo.svg" width="125" height="125" />
-
-    <div class="wrapper">
-      <HelloWorld msg="You did it!" />
-
-      <nav>
-        <RouterLink to="/">Home</RouterLink>
-        <RouterLink to="/about">About</RouterLink>
-      </nav>
-    </div>
-  </header>
-
+  <Header />
   <RouterView />
 </template>