Feature
- Feature: add the option to change the site name font-family
- Feature: add the option to close instant-page
- Feature: the sidebar can auto scroll when the toc out of the screen
Fix
- Fix: random cover of previous post and next post
- Fix: Display null when the subtitle not set
- Fix: display related post's headline when it is not related posts
- Fix: the bugs of image display
- Fix: When the picture is loaded, the picture appears black frame