refactor: clean up configuration and components, optimize implementation details

- Remove unused navigation bar and social link configurations
- Update Footer component, simplify code
- Refactor PostList and PostTime components, improve code readability
- Adjust Waline comment component styles
- Streamline content config and reading time plugin
- Update theme guide document titles and tags

src/components/PostList.astro

@@ -6,28 +6,29 @@ interface Post {
     title: string
     abbrlink?: string
     published: Date
-    lang?: string
   }
+  // URL path automatically generated by Astro based on the filename
   slug?: string
+  // Optional for robustness in case render() fails or plugin isn't applied
   remarkPluginFrontmatter?: {
     minutes?: number
   }
 }
 
-// Receive posts parameter passed from outside
-const { posts, lang: pageLang } = Astro.props
+// Get post list and page language parameter from props
+const { posts, lang } = Astro.props
 
-// Declare the type of props
 export interface Props {
   posts: Post[]
   lang?: string
 }
 
-// 构建正确的链接路径
-function getPostUrl(post: Post) {
+// Get multilingual post URL path
+function getPostPath(post: Post) {
+  // If abbrlink is set, it will be used instead of slug
   const postPath = post.data.abbrlink || post.slug
-  // 如果是在语言文件夹下的页面，添加语言前缀
-  return pageLang ? `/${pageLang}/posts/${postPath}/` : `/posts/${postPath}/`
+  // Add language prefix to URL if current page is in a language subdirectory
+  return lang ? `/${lang}/posts/${postPath}/` : `/posts/${postPath}/`
 }
 ---
 <ul>
@@ -37,7 +38,7 @@ function getPostUrl(post: Post) {
       {/* post title */}
       <a
         class="hover:c-primary"
-        href={getPostUrl(post)}
+        href={getPostPath(post)}
         transition:name={`post-${post.data.abbrlink || post.slug}`}
         data-disable-transition-on-theme
       >