Major release with significant new features and improvements

• Added full HackerNews support with source dropdown and multiple feeds
• Redesigned interface with sidebar navigation for better organization
• Faster loading with on-demand content fetching
• Improved comment display with collapsible threads and better navigation
• Better pagination controls for easier browsing
• Added mobile-friendly bottom navigation bar
• Read articles directly in the app with integrated web view
• Added context menus for copying links and opening content externally
• Fixed various loading and display issues