✨ feat: add github repository card extension feature

- remove astro-compress to improve build speed
- add target and rel attributes to footer links
- rename unocss opacity utility from 'opacity' to 'op'
- update PostList component's page logic from 'isTag' to 'isHome'
- create extend.css file for markdown extended features
- reorganize and sort styles in heti.css
- fix inline code wrapping issue

.vscode/settings.json

@@ -74,6 +74,8 @@
     "blurhash",
     "bmoji",
     "canvaskit",
+    "Cpath",
+    "Csvg",
     "Disqus",
     "Etiquetas",
     "figcaption",