feat: preconnect 根據 CDN 配置引入

feat: 移除 anchor 的 button, 直接點擊標題跳轉
feat: 更改 headline 的 hover 效果
improvement: tabs content 裏最後一個元素 margin-bottom 改為 0
fix: float 浮動佈局導致評論寬度異常的 bug

source/js/main.js

@@ -593,8 +593,15 @@ document.addEventListener('DOMContentLoaded', function () {
       saveToLocal.set('aside-status', saveStatus, 2)
       $htmlDom.toggle('hide-aside')
     },
-    'mobile-toc-button': () => { // Show mobile toc
-      document.getElementById('card-toc').classList.toggle('open')
+    'mobile-toc-button': item => { // Show mobile toc
+      const tocEle = document.getElementById('card-toc')
+      tocEle.style.transformOrigin = `right ${item.getBoundingClientRect().top + 17}px`
+      tocEle.style.transition = 'transform 0.3s ease-in-out'
+      tocEle.classList.toggle('open')
+      tocEle.addEventListener('transitionend', () => {
+        tocEle.style.transition = ''
+        tocEle.style.transformOrigin = ''
+      }, { once: true })
     },
     'chat-btn': () => { // Show chat
       window.chatBtnFn()