Bug Report

load the _sidebar with md files, when click to show the .md file on the right content, there is no scroll bar on the right, the page is static and even cannot scroll down.

Steps to reproduce

1. run docsify serve docs
2. open: localhost
3. click a sidebar item, it loads the .md file content on the right side
4. page is static, and window cannot scroll down, only show part of the file.
   no scrollbar on the right shows up.

What is current behaviour

page is static and cannot scroll down, so i cannot see the whole content in the .md file

What is the expected behaviour

loads the scroll bar on the window on the right side

Other relevant information

• Docsify-cli version: 4.4.0
• Docsify plugins: docsify-sidebar-collapse,docsify-scroll-to-top
• Docsify config:

 window.$docsify = {
        name: "",
        repo: "",
        loadSidebar: true,
        search: "auto",
        auto2top: true
      };

Please create a reproducible sandbox

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