feat: enhance post listing and reading time display

- Implement dynamic post listing grouped by year with improved date formatting
- Add reading time display for each post
- Update index pages for both default and localized routes
- Modify content utility functions to support reading time metadata
- Refactor global styles and type definitions to support new features

src/types/global.d.ts

@@ -4,11 +4,15 @@ declare global {
   namespace astroHTML.JSX {
     interface HTMLAttributes extends AttributifyAttributes {}
   }
-}
 
-declare global {
   interface Document {
-    startViewTransition: (callback: () => void) => void
+    startViewTransition: (updateCallback: () => void) => ViewTransition
+  }
+
+  interface ViewTransition {
+    finished: Promise<void>
+    ready: Promise<void>
+    updateCallbackDone: Promise<void>
   }
 }