Feat/mangadm refactor

[xMohnad]

BREAKING CHANGES:

• Removed component-based architecture and base classes
• Replaced Rich console with logging system
• Rewrote core downloader logic
• Moved MangaArchiver from components/ to top-level module
• Consolidated types into schema module
• Updated Python requirement from 3.12+ to 3.10+
• Removed obsolete config files (.python-version, MANIFEST.in)
• Removed old Click-based CLI and utility classes
• Deleted cli_util, main, and CLI submodules
• Updated main.py to use Typer app()
• Removed obsolete CLI configuration handling
• Renamed not_available_error.webp to placeholder_image.webp
• Removed epub_style_css() and deleted style.css
• Simplified build_chapter_content():
  • Accepts list of Path objects
  • Generates HTML content for EPUB chapters with images only

New Features:

• Added schema validation with Manga, MangaDetails, and Chapter dataclasses
• Added configurable retry logic and HTTP error handling
• Integrated dacite for JSON deserialization
• Centralized configuration via YAML at config path
• Added show_config command to display current configuration
• Added verbose logging option

ARCHIVER IMPROVEMENTS:

• Replaced inheritance with standalone MangaArchiver
• Simplified image path discovery using pathlib
• Added dynamic archiver method lookup via getattr()
• Unified archive creation interface with create_archive()
• Enhanced EPUB creation: simplified spine & TOC, removed manual CSS/styling

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For more details, see the updated files.