chore: 升級版本至 5.5.2 並更新相依套件

- perf(highlight): 改善複製提示 UI，新增浮動動畫效果
- fix(shuoshuo): 為說說內容中的圖片新增延遲載入支援
- fix(mermaid): 支援在標籤助手中使用自訂配置選項
- fix: 使用 url_for() 處理主題資源路徑 (busuanzi, artalk)
- refactor(aside_archives): 重新命名 url_for 變數以保持一致性
- refactor(inject_head_js): 使用解構賦值命名方式
- chore(deps): 更新 hexo-util 至 4.0.0
- chore(plugins): 更新多個 CDN 套件版本
- style(highlight): 優化程式碼區塊工具列佈局與溢位處理
- fix(zh-CN): 修正分頁文字使用正確的簡體字「页」

layout/includes/page/shuoshuo.pug

@@ -49,6 +49,7 @@
     if !page.shuoshuo_url
       script(type='application/json' id='shuoshuo-data')!= safeJSON(localDate)
 
+    - const { enable, native, placeholder, field } = theme.lazyload
     script.
       (() => {
         const limitConfig = !{ JSON.stringify(page.limit || {}) }
@@ -84,6 +85,36 @@
           return `${year}-${month}-${day} ${hour}:${minute}:${second}`
         }
 
+        const addLazyload = str => {
+          const config = {
+            enable: !{Boolean(enable)},
+            native: !{Boolean(native)},
+            field: '!{field}',
+            placeholder: '!{url_for(placeholder)}',
+          }
+
+          if (!config.enable || config.field !== 'site') return str
+          const parser = new DOMParser()
+          const doc = parser.parseFromString(str, 'text/html')
+          const images = doc.querySelectorAll('img')
+
+          images.forEach(img => {
+            if (config.native) {
+              img.setAttribute('loading', 'lazy')
+            } else {
+              const src = img.getAttribute('src')
+              img.setAttribute('data-lazy-src', src)
+
+              if (config.placeholder) {
+                img.setAttribute('src', config.placeholder)
+              } else {
+                img.removeAttribute('src')
+              }
+            }
+          })
+          return doc.body.innerHTML
+        }
+
         let currentPage = 1
         const itemsPerPage = 8
         let totalPages = 0
@@ -117,7 +148,7 @@
                       </time>
                     </div>
                   </div>
-                  <div class="shuoshuo-content">${item.content}</div>
+                  <div class="shuoshuo-content">${addLazyload(item.content)}</div>
                   <div class="shuoshuo-footer ${tags ? 'flex-between' : 'flex-end'}">
                     ${tags ? `<div class="shuoshuo-tags">${tags}</div>` : ''}
                     ${commentButton}