feat(algolia): add data deletion functionality and execute in index.js

- Add `checkDataFromAlgolia` function to identify and delete unused data
- Implement `deletePostDataFromAlgolia` helper function
- Execute Algolia data check during homepage generation
- Handle password-protected and draft pages deletion

lib/plugins/algolia.js

@@ -60,7 +60,7 @@ const deletePostDataFromAlgolia = async post => {
       .deleteObject(post.id)
       .wait()
       .then(r => {
-        console.log('Algolia索引更新', r)
+        console.log('Algolia索引删除成功', r)
       })
       .catch(err => {
         console.log('Algolia异常', err)