Created header and the start of a shopping cart.

frontend/App.vue

@@ -0,0 +1,22 @@
+<template>
+  <div>
+    <Header></Header>
+
+    <router-view />
+  </div>
+</template>
+
+<script>
+import Header from '@/components/Header';
+
+export default {
+  name: 'App',
+  components: { Header }
+}
+</script>
+
+<style lang="scss">
+@import './styles/normalize';
+@import './styles/icons';
+@import './styles/global';
+</style>