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

feat: replace fancybox with lightgallery

chore: update readme

chore: minor fixes

Merge pull request ppoffice#85 from anthonyfok/correct-author-in-lice…

…nse-file

Correct author information in LICENSE file