* refactor: separate rss and atom generation, optimize back button logic, remove redundant whitespace in component styles
* fix: add missing <published> tag in atom feed
- Add DateFormat and PostTime components, supporting multiple date display formats
- Add dateFormat option in theme configuration, allowing customization of date display styles
- Refactor time display logic in article list and article detail pages
- Update configuration type definitions to support new date format options
- 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
- Add new font variations for EarlySummer and subset fonts
- Update uno.config.ts to modify font family configurations
- Introduce new font files for navbar, time, and subset usage
- Remove preload of external font CDN and add local font CSS import
- Adjust scrollbar initialization to handle native scrollbars
- Modify index page date display styles
- Added localized Retypeset theme introduction posts for multiple languages
- Included posts in English, Spanish, Russian, Japanese, Chinese (Simplified and Traditional)
- Standardized post structure with consistent metadata and content
- Updated content configuration to support multilingual post entries
- 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
- Move configuration and utility files to more organized locations
- Update import paths across the project to reflect new file structure
- Simplify content and internationalization utilities
- Remove redundant configuration files and consolidate logic
- Add prefetch configuration to Astro config for improved performance
- Enhance content configuration with slug validation to ensure only valid characters are used
- Update post routing to support custom slugs with fallback to default slug
- Implement slug duplication check to prevent conflicts across different languages
- Modify various page components to use custom or default slugs in URL generation
