* Refactoring MdToHtml to avoid manually rendering tokens
* Minor fix
* Fixed loading of resources
* Handle clicking on checkboxes
* Added back Katex support
* Fixed issues with Katex and note rendering
* Added back support for links
* Restored code block highlighting support
* clean up
* Applying update to mobile
* Fixed handling of links and cleaned up to share more code between mobile and desktop
* Restored content caching and improved handling of additional assets
* Clean up and a few fixes
* Applied more updates to mobile and added code highlighting support
