v2.0.0 published

Feature

• Too many contents in catalogue, auto scroll function
• Add slot custom directory styles and icons
• Add props: activeColor ,levelGap ,iconLeft ,lineLeft ,lineShow ,title ,height,title

Improvements

• Part props naming modification

Delete

• Delete the default slot of the directory name and change to icon slot
• Remove refList props

fix node no content error

Fix the error of dynamically rendering the initial dom node with no content
修复动态渲染初始dom节点无内容的错误