- Updated `RootLayout` to include user authentication logic and loading states.
- Removed redundant user authentication logic from `Page` component.
- Enhanced `AppSidebar` to fetch and display logged-in user information.
- Replaced `GravatarAvatar` with new `Avatar` component for user profile images.
- Added new pages for comment, file, post, and user management.
- Introduced utility functions for generating Gravatar URLs and fallback avatars based on usernames.
- Cleaned up unused imports and components across various files.
- Added BlogHome component for displaying posts with sorting options (latest/popular).
- Integrated Sidebar with About, Hot Posts, Tags, and Misskey Iframe components.
- Created BlogPost component to render individual posts with metadata and content.
- Developed GravatarAvatar component for user avatars.
- Implemented Markdown rendering with syntax highlighting and custom code blocks.
- Added pagination component for navigating through posts.
- Enhanced login form with OpenID Connect options and email/password authentication.
- Utility functions for generating post URLs and calculating reading time.
