refactor(layout): improve blog post layout and component styling

- Move AuthorCard to bottom of main content with enhanced styling
- Adjust TableOfContents styling and positioning
- Simplify AuthorCard and GlassHeader components

src/pages/projects.astro

@@ -16,7 +16,7 @@ const currentProjects = projects[lang as keyof typeof projects] || projects.en;
 ---
 
 <Layout title={pageTitle}>
-  <GlassHeader client:only="react" />
+  <GlassHeader lang={lang} client:only="react" />
   <main class="min-h-screen">
     <!-- Projects Hero Section -->
     <section class="py-24 relative overflow-hidden">