chore(style): enhance not-prose elements styling (#163)

* chore(css): improve not-prose tags styling

* fix: typo

* chore(style): improve appearance in prose

* feat: support icon in callout shortcode

* chore: add RSS badge to blog list page

* chore: run build:css

* chore: run build:css

* chore: remove unused CSS

* chore: add footer.enable explicitly to config

* chore: use `where` pseudo class for more prose elements

* chore: run build:css

* chore: remove blank space

* chore: rebuild css

* chore: update figure css

exampleSite/content/_index.md

@@ -57,7 +57,7 @@ layout: hextra-home
     subtitle="No dependency or Node.js is needed to use Hextra. Powered by Hugo, one of *the fastest* static site generators, building your site in just seconds with a single binary."
   >}}
   {{< hextra/feature-card
-    title="Reponsive with Dark Mode Included"
+    title="Responsive with Dark Mode Included"
     subtitle="Looks great on different screen sizes. Built-in dark mode support, with auto-switching based on user's system preference."
   >}}
   {{< hextra/feature-card