feat(layout): code block style fix and add folding

Update links to HTTPS and fix broken links (ppoffice#456)

* Update links to HTTPS

* Fix broken links

chore(widget): disable avatar rounding by default

Merge branch 'jitwxs-work'

fix(css): transform-scale elements are mistaken for the container for…

… fixed elements

feat(widget): show floating toc on mobile devices

chore(animejs): better loading visuals

fix(readme): image size and link fixes

fix(comment): disable gitment on index page

feat: add support for inline images