Bug Report

after config 'full text search' plugin, the number of search box is wrong

Steps to reproduce

this is index.html, according the offical guid:
1 quick-start,
2 rewrite index.html,
3 execute command: docsify serve,
and will see the error

Current behaviour

Expected behaviour

Other relevant information

• Docsify version: 4.4.4

• Bug still occurs when all/other plugins are disabled?
  after conf this in index.html : <script src="//cdn.jsdelivr.net/npm/docsify/lib/plugins/search.min.js"></script>
  the error show

• Docsify plugins (if the bug happens when plugins enabled, please try to isolate the issue):
  https://docsify.js.org/#/plugins?id=full-text-search

Please create a reproducible sandbox

Mention the docsify version in which this bug was not present (if any)