refactor: remove underline animation and update styling

- Remove underline-animation UnoCSS shortcut from uno.config.ts
- Update Navbar component to remove underline-animation classes
- Remove inline script for link transition animations
- Add cover images to existing posts
- Update font and date display classes in index pages
- Modify global CSS for iOS rendering optimization

src/content/posts/故乡.md

@@ -1,9 +1,11 @@
 ---
 title: 故鄉
-published: 1921-01-10
+published: 2024-01-10
 tags: ["鲁迅"]
 ---
 
+![](https://image.radishzz.cc/image/01-oneui/21.webp)
+
 我冒了嚴寒，回到相隔二千餘里，別了二十餘年的故鄉去。
 
 時候既然是深冬；漸近故鄉時，天氣又陰晦了，冷風吹進船艙中，嗚嗚的響，從蓬隙向外一望，蒼黃的天底下，遠近橫著幾個蕭索的荒村，沒有一些活氣。我的心禁不住悲涼起來了。