chore: support multiple search elements
chore: sidebar display toc on mobile view
chore: add hamburger menu to navbar on mobile
chore: add markdown link hook
for opening external link in new window
chore: add sidebar footer
- put search under params.type
- make navbar link aware of external link
chore: add styles to html and body
chore: update theme for tailwind config
chore: update colors
chore: add list layout override for docs
chore: update default layouts
chore: update contents
