[Feature] Modern search experience

[zhonger]

Description

Modern search experience is essential for the blog, especially with many articles or content. It mainly contains two aspects:

• Modern search UI: It can be implemented by following the Algolia search style.
• Modern search backend, there are mostly three types:
  • (Not recommended) Traditional site search supported by search engines (most are not available or in charge)
  • (Recommended) Algolia search or Algolia DocSearch
  • (Recommended) Self-hosted search services, such as MeliSearch, OpenSearch, ElasticSearch, typesense and so on.

Reference

• 为 jekyll 网站添加 algolia 搜索功能
• Docusaurus - search