feat(wip): leaderboard ui

static/assets/js/components/leaderboard.js

@@ -0,0 +1,14 @@
+PetiteVue.createApp({
+    //$delimiters: ['${', '}'],  // https://github.com/vuejs/petite-vue/pull/100
+    activeTab: defaultTab,
+    isActive(tab) {
+        return this.activeTab === tab
+    },
+    updateTab() {
+        this.activeTab = window.location.hash.slice(1) || defaultTab
+    },
+    mounted() {
+        this.updateTab()
+        window.addEventListener('hashchange', () => this.updateTab())
+    }
+}).mount('#leaderboard-page')