chore: update example site content
chore: add configuration for footer
chore: allow disable footer completely
chore: navbar highlights if contains current page
chore: styling update for partial templates
chore: update steps to use markdown delimiter
* update dev and build command
chore: move contents to exampleSite
chore: add configs to exampleSite
chore: use tailwindcss/nesting
* add postcss-import
* move imports to the top
chore: add config for theme dev
chore: add compiled css
chore: fix last updated issue
chore: dont't ignore hugo_stats.json
chore: update index page layout
