continue migration: make website working

assets/vue/tab.vue

@@ -0,0 +1,31 @@
+<template>
+    <li @click.prevent="onclick"
+        :class="{'is-active': $parent.value == value}">
+        <slot></slot>
+    </li>
+</template>
+
+<script>
+export default {
+    props: {
+        value: { default: undefined },
+    },
+
+    methods: {
+        select() {
+            this.$parent.selectTab(this);
+        },
+
+        onclick(event) {
+            this.select();
+            /*if(event.target.href != document.location)
+                window.history.pushState(
+                    { url: event.target.href },
+                    event.target.innerText + ' - ' + document.title,
+                    event.target.href
+                ) */
+        }
+    }
+}
+</script>
+